High-Fructose Corn Syrup / HFCS

dose

HFCS-42 and HFCS-55; no administered dose

duration

Composition reference accessed 2026-09-20

evidence_access

Official FDA composition page; not a primary experiment.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Official description of HFCS formulations

exposure_scope

HFCS identity

limitations

Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Official description of HFCS formulations

plain_language

HFCS-42 is a formulation with approximately 42% fructose in its saccharide composition.

primary_references

[fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers

route

Not an intervention

tissue

Ingredient chemistry

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 17–27

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Official description of HFCS formulations · source_derived_draft · unverified_draft

## hfcs-form42 HFCS-42 is a formulation with approximately 42% fructose in its saccharide composition. Model/species: Official description of HFCS formulations Tissue: Ingredient chemistry Exposure: HFCS-42 and HFCS-55; no administered dose Route: Not an intervention Duration: Composition reference accessed 2026-09-20 Exposure scope: HFCS identity Limits: Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment. Reference: [fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers Access: Official FDA composition page; not a primary experiment.

dose

HFCS-42 and HFCS-55; no administered dose

duration

Composition reference accessed 2026-09-20

evidence_access

Official FDA composition page; not a primary experiment.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Official description of HFCS formulations

exposure_scope

HFCS identity

limitations

Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Official description of HFCS formulations

plain_language

HFCS-55 is a formulation with approximately 55% fructose in its saccharide composition.

primary_references

[fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers

route

Not an intervention

tissue

Ingredient chemistry

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 29–39

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Official description of HFCS formulations · source_derived_draft · unverified_draft

## hfcs-form55 HFCS-55 is a formulation with approximately 55% fructose in its saccharide composition. Model/species: Official description of HFCS formulations Tissue: Ingredient chemistry Exposure: HFCS-42 and HFCS-55; no administered dose Route: Not an intervention Duration: Composition reference accessed 2026-09-20 Exposure scope: HFCS identity Limits: Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment. Reference: [fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers Access: Official FDA composition page; not a primary experiment.

dose

HFCS-42 and HFCS-55; no administered dose

duration

Composition reference accessed 2026-09-20

evidence_access

Official FDA composition page; not a primary experiment.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Official description of HFCS formulations

exposure_scope

HFCS identity

limitations

Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Official description of HFCS formulations

plain_language

HFCS contains free fructose rather than fructose linked to glucose in sucrose.

primary_references

[fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers

route

Not an intervention

tissue

Ingredient chemistry

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 41–51

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Official description of HFCS formulations · source_derived_draft · unverified_draft

## hfcs-fructose-component HFCS contains free fructose rather than fructose linked to glucose in sucrose. Model/species: Official description of HFCS formulations Tissue: Ingredient chemistry Exposure: HFCS-42 and HFCS-55; no administered dose Route: Not an intervention Duration: Composition reference accessed 2026-09-20 Exposure scope: HFCS identity Limits: Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment. Reference: [fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers Access: Official FDA composition page; not a primary experiment.

dose

HFCS-42 and HFCS-55; no administered dose

duration

Composition reference accessed 2026-09-20

evidence_access

Official FDA composition page; not a primary experiment.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Official description of HFCS formulations

exposure_scope

HFCS identity

limitations

Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Official description of HFCS formulations

plain_language

HFCS contains free glucose alongside fructose.

primary_references

[fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers

route

Not an intervention

tissue

Ingredient chemistry

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 53–63

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Official description of HFCS formulations · source_derived_draft · unverified_draft

## hfcs-glucose-component HFCS contains free glucose alongside fructose. Model/species: Official description of HFCS formulations Tissue: Ingredient chemistry Exposure: HFCS-42 and HFCS-55; no administered dose Route: Not an intervention Duration: Composition reference accessed 2026-09-20 Exposure scope: HFCS identity Limits: Percentages describe sweetener composition, not beverage volume. This source is not a primary metabolic experiment. Reference: [fda-hfcs-composition] High Fructose Corn Syrup Questions and Answers (accessed 2026). https://www.fda.gov/food/food-additives-petitions/high-fructose-corn-syrup-questions-and-answers Access: Official FDA composition page; not a primary experiment.

dose

HFCS or sucrose beverages with 3 isocaloric meals; exact sugar allocation not recovered from primary abstract

duration

24-hour profiles

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

34 adults in crossover meal study; 8 men also received pure monosaccharides

exposure_scope

Direct HFCS versus sucrose

limitations

Short feeding study; eight-man fructose/glucose comparison is a subset and does not establish long-term equivalence or appetite control.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

34 adults in crossover meal study; 8 men also received pure monosaccharides

plain_language

HFCS and sucrose produced similar 24-hour insulin profiles with isocaloric meals.

primary_references

Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. (2008). https://pubmed.ncbi.nlm.nih.gov/18469239/ DOI: 10.1093/ajcn/87.5.1194

route

Oral beverages with meals

tissue

24-hour endocrine and triglyceride profiles

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 353–363

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 34 adults in crossover meal study; 8 men also received pure monosaccharides · source_derived_draft · unverified_draft

## hfcs-acute-insulin HFCS and sucrose produced similar 24-hour insulin profiles with isocaloric meals. Model/species: 34 adults in crossover meal study; 8 men also received pure monosaccharides Tissue: 24-hour endocrine and triglyceride profiles Exposure: HFCS or sucrose beverages with 3 isocaloric meals; exact sugar allocation not recovered from primary abstract Route: Oral beverages with meals Duration: 24-hour profiles Exposure scope: Direct HFCS versus sucrose Limits: Short feeding study; eight-man fructose/glucose comparison is a subset and does not establish long-term equivalence or appetite control. Reference: Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. (2008). https://pubmed.ncbi.nlm.nih.gov/18469239/ DOI: 10.1093/ajcn/87.5.1194 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS or sucrose beverages with 3 isocaloric meals; exact sugar allocation not recovered from primary abstract

duration

24-hour profiles

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

34 adults in crossover meal study; 8 men also received pure monosaccharides

exposure_scope

Direct HFCS versus sucrose

limitations

Short feeding study; eight-man fructose/glucose comparison is a subset and does not establish long-term equivalence or appetite control.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

34 adults in crossover meal study; 8 men also received pure monosaccharides

plain_language

HFCS and sucrose produced similar 24-hour circulating leptin profiles in the crossover study.

primary_references

Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. (2008). https://pubmed.ncbi.nlm.nih.gov/18469239/ DOI: 10.1093/ajcn/87.5.1194

route

Oral beverages with meals

tissue

24-hour endocrine and triglyceride profiles

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 365–375

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 34 adults in crossover meal study; 8 men also received pure monosaccharides · source_derived_draft · unverified_draft

## hfcs-acute-leptin HFCS and sucrose produced similar 24-hour circulating leptin profiles in the crossover study. Model/species: 34 adults in crossover meal study; 8 men also received pure monosaccharides Tissue: 24-hour endocrine and triglyceride profiles Exposure: HFCS or sucrose beverages with 3 isocaloric meals; exact sugar allocation not recovered from primary abstract Route: Oral beverages with meals Duration: 24-hour profiles Exposure scope: Direct HFCS versus sucrose Limits: Short feeding study; eight-man fructose/glucose comparison is a subset and does not establish long-term equivalence or appetite control. Reference: Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. (2008). https://pubmed.ncbi.nlm.nih.gov/18469239/ DOI: 10.1093/ajcn/87.5.1194 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS or sucrose beverages with 3 isocaloric meals; exact sugar allocation not recovered from primary abstract

duration

24-hour profiles

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

34 adults in crossover meal study; 8 men also received pure monosaccharides

exposure_scope

Direct HFCS versus sucrose

limitations

Short feeding study; eight-man fructose/glucose comparison is a subset and does not establish long-term equivalence or appetite control.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

34 adults in crossover meal study; 8 men also received pure monosaccharides

plain_language

In the eight-man subset, HFCS and sucrose produced postprandial triglyceride responses comparable to pure fructose.

primary_references

Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. (2008). https://pubmed.ncbi.nlm.nih.gov/18469239/ DOI: 10.1093/ajcn/87.5.1194

route

Oral beverages with meals

tissue

24-hour endocrine and triglyceride profiles

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 377–387

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 34 adults in crossover meal study; 8 men also received pure monosaccharides · source_derived_draft · unverified_draft

## hfcs-acute-tg In the eight-man subset, HFCS and sucrose produced postprandial triglyceride responses comparable to pure fructose. Model/species: 34 adults in crossover meal study; 8 men also received pure monosaccharides Tissue: 24-hour endocrine and triglyceride profiles Exposure: HFCS or sucrose beverages with 3 isocaloric meals; exact sugar allocation not recovered from primary abstract Route: Oral beverages with meals Duration: 24-hour profiles Exposure scope: Direct HFCS versus sucrose Limits: Short feeding study; eight-man fructose/glucose comparison is a subset and does not establish long-term equivalence or appetite control. Reference: Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. (2008). https://pubmed.ncbi.nlm.nih.gov/18469239/ DOI: 10.1093/ajcn/87.5.1194 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS-55 beverages at 0%, 10%, 17.5% or 25% energy requirement; 0% aspartame control

duration

Approximately 2 weeks

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

85 adults aged 18-40; nonrandomized double-blinded matched groups

exposure_scope

Direct HFCS-55 evidence

limitations

Short biomarker study; outpatient calories were not fixed and clinical cardiovascular events were not measured. NCT01103921 overlaps HFCS/control participants with the 2021 report.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

85 adults aged 18-40; nonrandomized double-blinded matched groups

plain_language

Fasting LDL cholesterol increased across increasing HFCS beverage doses in the two-week study.

primary_references

A dose-response study of consuming high-fructose corn syrup-sweetened beverages on lipid/lipoprotein risk factors for cardiovascular disease in young adults. (2015). https://pubmed.ncbi.nlm.nih.gov/25904601/ DOI: 10.3945/ajcn.114.100461

route

Oral beverages, with outpatient ad libitum diet and controlled inpatient meals

tissue

Circulating lipids and urate

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 293–303

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 85 adults aged 18-40; nonrandomized double-blinded matched groups · source_derived_draft · unverified_draft

## hfcs-dose-ldl Fasting LDL cholesterol increased across increasing HFCS beverage doses in the two-week study. Model/species: 85 adults aged 18-40; nonrandomized double-blinded matched groups Tissue: Circulating lipids and urate Exposure: HFCS-55 beverages at 0%, 10%, 17.5% or 25% energy requirement; 0% aspartame control Route: Oral beverages, with outpatient ad libitum diet and controlled inpatient meals Duration: Approximately 2 weeks Exposure scope: Direct HFCS-55 evidence Limits: Short biomarker study; outpatient calories were not fixed and clinical cardiovascular events were not measured. NCT01103921 overlaps HFCS/control participants with the 2021 report. Reference: A dose-response study of consuming high-fructose corn syrup-sweetened beverages on lipid/lipoprotein risk factors for cardiovascular disease in young adults. (2015). https://pubmed.ncbi.nlm.nih.gov/25904601/ DOI: 10.3945/ajcn.114.100461 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS-55 beverages at 0%, 10%, 17.5% or 25% energy requirement; 0% aspartame control

duration

Approximately 2 weeks

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

85 adults aged 18-40; nonrandomized double-blinded matched groups

exposure_scope

Direct HFCS-55 evidence

limitations

Short biomarker study; outpatient calories were not fixed and clinical cardiovascular events were not measured. NCT01103921 overlaps HFCS/control participants with the 2021 report.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

85 adults aged 18-40; nonrandomized double-blinded matched groups

plain_language

HFCS beverage dose was associated with increasing postprandial triglycerides; all three sugar doses exceeded the aspartame control.

primary_references

A dose-response study of consuming high-fructose corn syrup-sweetened beverages on lipid/lipoprotein risk factors for cardiovascular disease in young adults. (2015). https://pubmed.ncbi.nlm.nih.gov/25904601/ DOI: 10.3945/ajcn.114.100461

route

Oral beverages, with outpatient ad libitum diet and controlled inpatient meals

tissue

Circulating lipids and urate

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 281–291

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 85 adults aged 18-40; nonrandomized double-blinded matched groups · source_derived_draft · unverified_draft

## hfcs-dose-triglycerides HFCS beverage dose was associated with increasing postprandial triglycerides; all three sugar doses exceeded the aspartame control. Model/species: 85 adults aged 18-40; nonrandomized double-blinded matched groups Tissue: Circulating lipids and urate Exposure: HFCS-55 beverages at 0%, 10%, 17.5% or 25% energy requirement; 0% aspartame control Route: Oral beverages, with outpatient ad libitum diet and controlled inpatient meals Duration: Approximately 2 weeks Exposure scope: Direct HFCS-55 evidence Limits: Short biomarker study; outpatient calories were not fixed and clinical cardiovascular events were not measured. NCT01103921 overlaps HFCS/control participants with the 2021 report. Reference: A dose-response study of consuming high-fructose corn syrup-sweetened beverages on lipid/lipoprotein risk factors for cardiovascular disease in young adults. (2015). https://pubmed.ncbi.nlm.nih.gov/25904601/ DOI: 10.3945/ajcn.114.100461 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS-55 beverages at 0%, 10%, 17.5% or 25% energy requirement; 0% aspartame control

duration

Approximately 2 weeks

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

85 adults aged 18-40; nonrandomized double-blinded matched groups

exposure_scope

Direct HFCS-55 evidence

limitations

Short biomarker study; outpatient calories were not fixed and clinical cardiovascular events were not measured. NCT01103921 overlaps HFCS/control participants with the 2021 report.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

85 adults aged 18-40; nonrandomized double-blinded matched groups

plain_language

Mean 24-hour urate increased with HFCS dose in the two-week study.

primary_references

A dose-response study of consuming high-fructose corn syrup-sweetened beverages on lipid/lipoprotein risk factors for cardiovascular disease in young adults. (2015). https://pubmed.ncbi.nlm.nih.gov/25904601/ DOI: 10.3945/ajcn.114.100461

route

Oral beverages, with outpatient ad libitum diet and controlled inpatient meals

tissue

Circulating lipids and urate

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 305–315

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 85 adults aged 18-40; nonrandomized double-blinded matched groups · source_derived_draft · unverified_draft

## hfcs-dose-urate Mean 24-hour urate increased with HFCS dose in the two-week study. Model/species: 85 adults aged 18-40; nonrandomized double-blinded matched groups Tissue: Circulating lipids and urate Exposure: HFCS-55 beverages at 0%, 10%, 17.5% or 25% energy requirement; 0% aspartame control Route: Oral beverages, with outpatient ad libitum diet and controlled inpatient meals Duration: Approximately 2 weeks Exposure scope: Direct HFCS-55 evidence Limits: Short biomarker study; outpatient calories were not fixed and clinical cardiovascular events were not measured. NCT01103921 overlaps HFCS/control participants with the 2021 report. Reference: A dose-response study of consuming high-fructose corn syrup-sweetened beverages on lipid/lipoprotein risk factors for cardiovascular disease in young adults. (2015). https://pubmed.ncbi.nlm.nih.gov/25904601/ DOI: 10.3945/ajcn.114.100461 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS-55 or sucrose at 25% energy requirement versus aspartame; HFCS n=28, sucrose n=24, control n=23

duration

16 days of beverages, approximately 2 weeks

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

75 adults in nonrandomized double-blinded matched beverage groups

exposure_scope

Direct HFCS-55 comparison

limitations

No random assignment; 66 paired MRI scans, including 23 HFCS. Liver-fat HFCS significance was versus baseline, not established versus aspartame. No detected HFCS-sucrose difference is not universal equivalence. HFCS/control lipid data overlap PMID 25904601.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

75 adults in nonrandomized double-blinded matched beverage groups

plain_language

HFCS beverages reduced Matsuda insulin sensitivity compared with aspartame in the matched-group intervention.

primary_references

Consuming Sucrose- or HFCS-sweetened Beverages Increases Hepatic Lipid and Decreases Insulin Sensitivity in Adults. (2021). https://pubmed.ncbi.nlm.nih.gov/34265055/ DOI: 10.1210/clinem/dgab508

route

Oral 3 servings/day; usual diet outpatient, isocaloric substitutions during inpatient testing

tissue

MRI liver fat, oral-glucose-derived sensitivity, plasma markers

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 329–339

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 75 adults in nonrandomized double-blinded matched beverage groups · source_derived_draft · unverified_draft

## hfcs-insulin-sensitivity HFCS beverages reduced Matsuda insulin sensitivity compared with aspartame in the matched-group intervention. Model/species: 75 adults in nonrandomized double-blinded matched beverage groups Tissue: MRI liver fat, oral-glucose-derived sensitivity, plasma markers Exposure: HFCS-55 or sucrose at 25% energy requirement versus aspartame; HFCS n=28, sucrose n=24, control n=23 Route: Oral 3 servings/day; usual diet outpatient, isocaloric substitutions during inpatient testing Duration: 16 days of beverages, approximately 2 weeks Exposure scope: Direct HFCS-55 comparison Limits: No random assignment; 66 paired MRI scans, including 23 HFCS. Liver-fat HFCS significance was versus baseline, not established versus aspartame. No detected HFCS-sucrose difference is not universal equivalence. HFCS/control lipid data overlap PMID 25904601. Reference: Consuming Sucrose- or HFCS-sweetened Beverages Increases Hepatic Lipid and Decreases Insulin Sensitivity in Adults. (2021). https://pubmed.ncbi.nlm.nih.gov/34265055/ DOI: 10.1210/clinem/dgab508 Access: Primary full-text methods/results and metadata inspected.

dose

HFCS-55 or sucrose at 25% energy requirement versus aspartame; HFCS n=28, sucrose n=24, control n=23

duration

16 days of beverages, approximately 2 weeks

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

75 adults in nonrandomized double-blinded matched beverage groups

exposure_scope

Direct HFCS-55 comparison

limitations

No random assignment; 66 paired MRI scans, including 23 HFCS. Liver-fat HFCS significance was versus baseline, not established versus aspartame. No detected HFCS-sucrose difference is not universal equivalence. HFCS/control lipid data overlap PMID 25904601.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

75 adults in nonrandomized double-blinded matched beverage groups

plain_language

The HFCS group showed a 0.4 +/- 0.2 percentage-point increase in hepatic lipid from baseline; its direct contrast with aspartame was not significant.

primary_references

Consuming Sucrose- or HFCS-sweetened Beverages Increases Hepatic Lipid and Decreases Insulin Sensitivity in Adults. (2021). https://pubmed.ncbi.nlm.nih.gov/34265055/ DOI: 10.1210/clinem/dgab508

route

Oral 3 servings/day; usual diet outpatient, isocaloric substitutions during inpatient testing

tissue

MRI liver fat, oral-glucose-derived sensitivity, plasma markers

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 317–327

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 75 adults in nonrandomized double-blinded matched beverage groups · source_derived_draft · unverified_draft

## hfcs-liver-fat The HFCS group showed a 0.4 +/- 0.2 percentage-point increase in hepatic lipid from baseline; its direct contrast with aspartame was not significant. Model/species: 75 adults in nonrandomized double-blinded matched beverage groups Tissue: MRI liver fat, oral-glucose-derived sensitivity, plasma markers Exposure: HFCS-55 or sucrose at 25% energy requirement versus aspartame; HFCS n=28, sucrose n=24, control n=23 Route: Oral 3 servings/day; usual diet outpatient, isocaloric substitutions during inpatient testing Duration: 16 days of beverages, approximately 2 weeks Exposure scope: Direct HFCS-55 comparison Limits: No random assignment; 66 paired MRI scans, including 23 HFCS. Liver-fat HFCS significance was versus baseline, not established versus aspartame. No detected HFCS-sucrose difference is not universal equivalence. HFCS/control lipid data overlap PMID 25904601. Reference: Consuming Sucrose- or HFCS-sweetened Beverages Increases Hepatic Lipid and Decreases Insulin Sensitivity in Adults. (2021). https://pubmed.ncbi.nlm.nih.gov/34265055/ DOI: 10.1210/clinem/dgab508 Access: Primary full-text methods/results and metadata inspected.

dose

13% w/v HFCS-55, sucrose or fructose solution versus water

duration

8 weeks

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Female rats, seven per group

exposure_scope

Direct HFCS-55 animal evidence

limitations

Hypercaloric animal setting. Expression and fatty-acid composition suggest lipogenesis but are not isotope flux measurements; differences do not establish HFCS superiority/inferiority in humans.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Female rats, seven per group

plain_language

Rats drinking HFCS-55 had the highest hepatic triglyceride and total lipid content among the tested solutions.

primary_references

High-fructose corn syrup-55 consumption alters hepatic lipid metabolism and promotes triglyceride accumulation. (2017). https://pubmed.ncbi.nlm.nih.gov/27768909/ DOI: 10.1016/j.jnutbio.2016.09.010

route

Oral ad libitum solution

tissue

Hepatic lipid and expression endpoints

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 425–435

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Female rats, seven per group · source_derived_draft · unverified_draft

## hfcs-rat-hfcs-lipid Rats drinking HFCS-55 had the highest hepatic triglyceride and total lipid content among the tested solutions. Model/species: Female rats, seven per group Tissue: Hepatic lipid and expression endpoints Exposure: 13% w/v HFCS-55, sucrose or fructose solution versus water Route: Oral ad libitum solution Duration: 8 weeks Exposure scope: Direct HFCS-55 animal evidence Limits: Hypercaloric animal setting. Expression and fatty-acid composition suggest lipogenesis but are not isotope flux measurements; differences do not establish HFCS superiority/inferiority in humans. Reference: High-fructose corn syrup-55 consumption alters hepatic lipid metabolism and promotes triglyceride accumulation. (2017). https://pubmed.ncbi.nlm.nih.gov/27768909/ DOI: 10.1016/j.jnutbio.2016.09.010 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

13% w/v HFCS-55, sucrose or fructose solution versus water

duration

8 weeks

evidence_access

Primary abstract/metadata; unrecovered methods explicitly retained.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Female rats, seven per group

exposure_scope

Direct HFCS-55 animal evidence

limitations

Hypercaloric animal setting. Expression and fatty-acid composition suggest lipogenesis but are not isotope flux measurements; differences do not establish HFCS superiority/inferiority in humans.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Female rats, seven per group

plain_language

HFCS-55 exposure was associated with increased hepatic Scd1 expression in female rats.

primary_references

High-fructose corn syrup-55 consumption alters hepatic lipid metabolism and promotes triglyceride accumulation. (2017). https://pubmed.ncbi.nlm.nih.gov/27768909/ DOI: 10.1016/j.jnutbio.2016.09.010

route

Oral ad libitum solution

tissue

Hepatic lipid and expression endpoints

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 437–447

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Female rats, seven per group · source_derived_draft · unverified_draft

## hfcs-rat-scd1 HFCS-55 exposure was associated with increased hepatic Scd1 expression in female rats. Model/species: Female rats, seven per group Tissue: Hepatic lipid and expression endpoints Exposure: 13% w/v HFCS-55, sucrose or fructose solution versus water Route: Oral ad libitum solution Duration: 8 weeks Exposure scope: Direct HFCS-55 animal evidence Limits: Hypercaloric animal setting. Expression and fatty-acid composition suggest lipogenesis but are not isotope flux measurements; differences do not establish HFCS superiority/inferiority in humans. Reference: High-fructose corn syrup-55 consumption alters hepatic lipid metabolism and promotes triglyceride accumulation. (2017). https://pubmed.ncbi.nlm.nih.gov/27768909/ DOI: 10.1016/j.jnutbio.2016.09.010 Access: Primary abstract/metadata; unrecovered methods explicitly retained.

dose

HFCS-55 or sucrose at 25% energy requirement versus aspartame; HFCS n=28, sucrose n=24, control n=23

duration

16 days of beverages, approximately 2 weeks

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

75 adults in nonrandomized double-blinded matched beverage groups

exposure_scope

Direct HFCS-55 comparison

limitations

No random assignment; 66 paired MRI scans, including 23 HFCS. Liver-fat HFCS significance was versus baseline, not established versus aspartame. No detected HFCS-sucrose difference is not universal equivalence. HFCS/control lipid data overlap PMID 25904601.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

75 adults in nonrandomized double-blinded matched beverage groups

plain_language

No measured metabolic outcome differed significantly between the HFCS and sucrose beverage groups.

primary_references

Consuming Sucrose- or HFCS-sweetened Beverages Increases Hepatic Lipid and Decreases Insulin Sensitivity in Adults. (2021). https://pubmed.ncbi.nlm.nih.gov/34265055/ DOI: 10.1210/clinem/dgab508

route

Oral 3 servings/day; usual diet outpatient, isocaloric substitutions during inpatient testing

tissue

MRI liver fat, oral-glucose-derived sensitivity, plasma markers

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 341–351

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · 75 adults in nonrandomized double-blinded matched beverage groups · source_derived_draft · unverified_draft

## hfcs-sucrose-comparison No measured metabolic outcome differed significantly between the HFCS and sucrose beverage groups. Model/species: 75 adults in nonrandomized double-blinded matched beverage groups Tissue: MRI liver fat, oral-glucose-derived sensitivity, plasma markers Exposure: HFCS-55 or sucrose at 25% energy requirement versus aspartame; HFCS n=28, sucrose n=24, control n=23 Route: Oral 3 servings/day; usual diet outpatient, isocaloric substitutions during inpatient testing Duration: 16 days of beverages, approximately 2 weeks Exposure scope: Direct HFCS-55 comparison Limits: No random assignment; 66 paired MRI scans, including 23 HFCS. Liver-fat HFCS significance was versus baseline, not established versus aspartame. No detected HFCS-sucrose difference is not universal equivalence. HFCS/control lipid data overlap PMID 25904601. Reference: Consuming Sucrose- or HFCS-sweetened Beverages Increases Hepatic Lipid and Decreases Insulin Sensitivity in Adults. (2021). https://pubmed.ncbi.nlm.nih.gov/34265055/ DOI: 10.1210/clinem/dgab508 Access: Primary full-text methods/results and metadata inspected.

dose

400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories

duration

8 weeks; acute bolus for ATP analysis

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Genetically Apc-deficient mice predisposed to intestinal adenomas

exposure_scope

Direct HFCS in predisposed mice

limitations

Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Genetically Apc-deficient mice predisposed to intestinal adenomas

plain_language

An acute HFCS bolus lowered ATP in Apc-deficient intestinal tumors; the change was absent with Khk deletion.

primary_references

High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515

route

Oral gavage; Khk or Fasn deletion where specified

tissue

Tumor size/grade and metabolic perturbations

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 653–663

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Genetically Apc-deficient mice predisposed to intestinal adenomas · source_derived_draft · unverified_draft

## hfcs-tumor-atp An acute HFCS bolus lowered ATP in Apc-deficient intestinal tumors; the change was absent with Khk deletion. Model/species: Genetically Apc-deficient mice predisposed to intestinal adenomas Tissue: Tumor size/grade and metabolic perturbations Exposure: 400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories Route: Oral gavage; Khk or Fasn deletion where specified Duration: 8 weeks; acute bolus for ATP analysis Exposure scope: Direct HFCS in predisposed mice Limits: Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved. Reference: High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515 Access: Primary full-text methods/results and metadata inspected.

availability_state

machinery_impairment Imported condition classification; unverified.

dose

400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories

duration

8 weeks; acute bolus for ATP analysis

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Genetically Apc-deficient mice predisposed to intestinal adenomas

exposure_scope

Direct HFCS in predisposed mice

limitations

Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Genetically Apc-deficient mice predisposed to intestinal adenomas

plain_language

Tumor Fasn deletion abolished the growth-enhancing effect of HFCS in Apc-deficient mice.

primary_references

High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515

route

Oral gavage; Khk or Fasn deletion where specified

tissue

Tumor size/grade and metabolic perturbations

trigger_kind

machinery_impairment Imported condition classification; unverified.

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 641–651

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Genetically Apc-deficient mice predisposed to intestinal adenomas · source_derived_draft · unverified_draft

## hfcs-tumor-fasn-deletion Tumor Fasn deletion abolished the growth-enhancing effect of HFCS in Apc-deficient mice. Model/species: Genetically Apc-deficient mice predisposed to intestinal adenomas Tissue: Tumor size/grade and metabolic perturbations Exposure: 400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories Route: Oral gavage; Khk or Fasn deletion where specified Duration: 8 weeks; acute bolus for ATP analysis Exposure scope: Direct HFCS in predisposed mice Limits: Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved. Reference: High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515 Access: Primary full-text methods/results and metadata inspected.

dose

400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories

duration

8 weeks; acute bolus for ATP analysis

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Genetically Apc-deficient mice predisposed to intestinal adenomas

exposure_scope

Direct HFCS in predisposed mice

limitations

Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Genetically Apc-deficient mice predisposed to intestinal adenomas

plain_language

Restricted daily HFCS gavage increased large and high-grade intestinal tumors in Apc-deficient mice without inducing obesity.

primary_references

High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515

route

Oral gavage; Khk or Fasn deletion where specified

tissue

Tumor size/grade and metabolic perturbations

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 617–627

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Genetically Apc-deficient mice predisposed to intestinal adenomas · source_derived_draft · unverified_draft

## hfcs-tumor-growth Restricted daily HFCS gavage increased large and high-grade intestinal tumors in Apc-deficient mice without inducing obesity. Model/species: Genetically Apc-deficient mice predisposed to intestinal adenomas Tissue: Tumor size/grade and metabolic perturbations Exposure: 400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories Route: Oral gavage; Khk or Fasn deletion where specified Duration: 8 weeks; acute bolus for ATP analysis Exposure scope: Direct HFCS in predisposed mice Limits: Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved. Reference: High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515 Access: Primary full-text methods/results and metadata inspected.

availability_state

machinery_impairment Imported condition classification; unverified.

dose

400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories

duration

8 weeks; acute bolus for ATP analysis

evidence_access

Primary full-text methods/results and metadata inspected.

evidence_scope

literature_reviewed; source-specific curation

experimental_model

Genetically Apc-deficient mice predisposed to intestinal adenomas

exposure_scope

Direct HFCS in predisposed mice

limitations

Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved.

nutrient_topic

HFCS chapter: actual formulation studies, component biochemistry and interventions are explicitly distinguished. · High-Fructose Corn Syrup / HFCS

organism

Genetically Apc-deficient mice predisposed to intestinal adenomas

plain_language

Khk deletion abolished HFCS enhancement of tumor growth and grade in Apc-deficient mice.

primary_references

High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515

route

Oral gavage; Khk or Fasn deletion where specified

tissue

Tumor size/grade and metabolic perturbations

trigger_kind

machinery_impairment Imported condition classification; unverified.

High-Fructose Corn Syrup: mechanism of action and metabolic impact (2026-09-20) · lines 629–639

Original AI-assisted curation of twenty primary studies and official FDA composition information, with one reused canonical glucose-transport claim. Study-specific citations, negative findings and limitations retained. Not publisher full text. · supports · Genetically Apc-deficient mice predisposed to intestinal adenomas · source_derived_draft · unverified_draft

## hfcs-tumor-khk-deletion Khk deletion abolished HFCS enhancement of tumor growth and grade in Apc-deficient mice. Model/species: Genetically Apc-deficient mice predisposed to intestinal adenomas Tissue: Tumor size/grade and metabolic perturbations Exposure: 400 microliters of 25% HFCS solution daily, approximately 3% of mouse daily calories Route: Oral gavage; Khk or Fasn deletion where specified Duration: 8 weeks; acute bolus for ATP analysis Exposure scope: Direct HFCS in predisposed mice Limits: Growth of predisposed mouse tumors, not initiation of cancer in healthy humans. Total tumor number was similar in the main comparison; human-equivalent risk is unresolved. Reference: High-fructose corn syrup enhances intestinal tumor growth in mice. (2019). https://pubmed.ncbi.nlm.nih.gov/30898933/ DOI: 10.1126/science.aat8515 Access: Primary full-text methods/results and metadata inspected.