Plasma insulin response to glucose challenge

What acts on it

1. In ten healthy adults, a single 4 g dose of Moringa leaf powder increased insulin AUC and the insulin-to-glucose AUC ratio by 74% compared with the no-Moringa baseline.

   Moringa dry leaf powder → Plasma insulin response to glucose challenge source_derived_draftungraded
   Experimental context and source evidence

   dose

   Single 0, 1, 2 and 4 g leaf-powder doses separated by two weeks

   duration

   Six hours

   evidence_access

   Primary PubMed abstract and indexed metadata reviewed. Full-text method details not stated here remain unresolved.

   evidence_scope

   literature_reviewed; model-specific source-derived curation

   experimental_model

   Ten healthy adults in an escalating-dose crossover study

   limitations

   The small nonrandomized dose sequence in healthy volunteers does not establish chronic glycemic benefit or an effect in diabetes.

   nutrient_topic

   Moringa oleifera chapter; interacting nutrients, drugs, peptides and proteins retain their experimental settings. · Moringa oleifera

   organism

   Ten healthy adults in an escalating-dose crossover study

   plain_language

   In ten healthy adults, a single 4 g dose of Moringa leaf powder increased insulin AUC and the insulin-to-glucose AUC ratio by 74% compared with the no-Moringa baseline.

   primary_references

   Moringa Oleifera Leaf Increases Insulin Secretion after Single Dose Administration: A Preliminary Study in Healthy Subjects. (2016). https://pubmed.ncbi.nlm.nih.gov/27276742/

   route

   Oral

   tissue

   Plasma insulin and insulin/glucose AUC

   Moringa oleifera: mechanism of action and interactions (2026-09-20) · lines 112–121

   Original AI-assisted source-specific curation with primary-study citations, model, exposure, route, duration, negative findings and limitations preserved. Not publisher full text. · supports · Ten healthy adults in an escalating-dose crossover study · source_derived_draft · unverified_draft

   ## moringa-human-acute-insulin In ten healthy adults, a single 4 g dose of Moringa leaf powder increased insulin AUC and the insulin-to-glucose AUC ratio by 74% compared with the no-Moringa baseline. Model/species: Ten healthy adults in an escalating-dose crossover study Tissue/system: Plasma insulin and insulin/glucose AUC Exposure: Single 0, 1, 2 and 4 g leaf-powder doses separated by two weeks Route: Oral Duration: Six hours Limits: The small nonrandomized dose sequence in healthy volunteers does not establish chronic glycemic benefit or an effect in diabetes. Primary reference: Moringa Oleifera Leaf Increases Insulin Secretion after Single Dose Administration: A Preliminary Study in Healthy Subjects. (2016). https://pubmed.ncbi.nlm.nih.gov/27276742/ Access: Primary PubMed abstract and indexed metadata reviewed. Full-text method details not stated here remain unresolved.

   Complete structured claim and evidence

2. Insulin AUC was about 6.7% lower in the late condition.

   Late-evening glucose challenge relative to habitual bedtime → Plasma insulin response to glucose challenge source_derived_draftungraded
   Experimental context and source evidence

   evidence_span

   {"source_cache": "artifacts/melatonin-research/35015083.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "14878cd566ac009dde6fd0a6cc78adf1a4b48cfb2bc09e262568c909f84f236e", "start_char": 0, "end_char": 1688, "text_sha256": "14878cd566ac009dde6fd0a6cc78adf1a4b48cfb2bc09e262568c909f84f236e"}

   experimental_model

   Randomized crossover early versus late glucose-challenge study

   exposure

   75 g OGTT four versus one hour before habitual bedtime after eight-hour fast

   limitations

   Glucose drinks simulated meal timing. Timing, endogenous melatonin and other circadian factors co-varied; the intervention did not selectively manipulate melatonin alone.

   nutrient_topic

   Melatonin research collection; topical membership is not evidence of a direct dietary effect. · Melatonin

   organism

   845 Spanish adults

   plain_language

   The glucose rise accompanied a weaker insulin response.

   primary_references

   [melatonin-p35015083] Interplay of Dinner Timing and MTNR1B Type 2 Diabetes Risk Variant on Glucose Tolerance and Insulin Secretion: A Randomized Crossover Trial. (2022). https://pubmed.ncbi.nlm.nih.gov/35015083/ DOI: 10.2337/dc21-1314

   tissue_or_cell_type

   Endogenous melatonin and evening glucose handling

   Melatonin: synthesis, receptors, circadian timing and nutrient interactions (2026-09-17) · lines 1176–1187

   AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Randomized crossover early versus late glucose-challenge study · source_derived_draft · unverified_draft

   ### melatonin-late-challenge-insulin Insulin AUC was about 6.7% lower in the late condition. Condition category: normal nutrient_topic: Melatonin research collection; topical membership is not evidence of a direct dietary effect. plain_language: The glucose rise accompanied a weaker insulin response. organism: 845 Spanish adults tissue_or_cell_type: Endogenous melatonin and evening glucose handling experimental_model: Randomized crossover early versus late glucose-challenge study limitations: Glucose drinks simulated meal timing. Timing, endogenous melatonin and other circadian factors co-varied; the intervention did not selectively manipulate melatonin alone. exposure: 75 g OGTT four versus one hour before habitual bedtime after eight-hour fast evidence_span: {"source_cache": "artifacts/melatonin-research/35015083.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "14878cd566ac009dde6fd0a6cc78adf1a4b48cfb2bc09e262568c909f84f236e", "start_char": 0, "end_char": 1688, "text_sha256": "14878cd566ac009dde6fd0a6cc78adf1a4b48cfb2bc09e262568c909f84f236e"} [melatonin-p35015083] Interplay of Dinner Timing and MTNR1B Type 2 Diabetes Risk Variant on Glucose Tolerance and Insulin Secretion: A Randomized Crossover Trial. (2022). https://pubmed.ncbi.nlm.nih.gov/35015083/ DOI: 10.2337/dc21-1314

   Complete structured claim and evidence

3. Supplemented diets produced lower insulin-response areas after glucose challenge than the low-chromium diet, despite the lack of a glucose-tolerance defect.

   Chromium → Plasma insulin response to glucose challenge source_derived_draftungraded
   Experimental context and source evidence

   availability_state

   nutrient_deficiency Imported condition classification; unverified.

   evidence_span

   {"source_cache": "artifacts/chromium-research/21086001.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "308018cb4483d2b09c61c09f63a45811cc801750fd4f7922b8c9f010f5165abd", "start_char": 0, "end_char": 1561, "text_sha256": "308018cb4483d2b09c61c09f63a45811cc801750fd4f7922b8c9f010f5165abd"}

   experimental_model

   Six-month metal-controlled low-chromium feeding experiment

   exposure

   AIN-93G with no added chromium versus standard diet and supplemental 200 or 1,000 µg Cr/kg

   limitations

   Low intake is not absolute zero exposure. Lack of abnormality in this rat model challenges essentiality claims but is not by itself a complete human requirement experiment.

   nutrient_topic

   Chromium research collection; topical membership is not evidence of a direct dietary effect. · Chromium

   organism

   Male Zucker lean rats

   plain_language

   A pharmacological response can occur even when the low-intake group has no demonstrated deficiency syndrome.

   primary_references

   [chromium-p21086001] Chromium is not an essential trace element for mammals: effects of a "low-chromium" diet. (2011). https://pubmed.ncbi.nlm.nih.gov/21086001/ DOI: 10.1007/s00775-010-0734-y

   tissue_or_cell_type

   Body composition and glucose/insulin tolerance

   trigger_kind

   nutrient_deficiency Imported condition classification; unverified.

   Chromium: transport, insulin signaling, nutrient interactions and essentiality debate (2026-09-17) · lines 965–976

   AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Six-month metal-controlled low-chromium feeding experiment · source_derived_draft · unverified_draft

   ### chromium-supplement-insulin-auc-2011 Supplemented diets produced lower insulin-response areas after glucose challenge than the low-chromium diet, despite the lack of a glucose-tolerance defect. Condition category: nutrient_deficiency nutrient_topic: Chromium research collection; topical membership is not evidence of a direct dietary effect. plain_language: A pharmacological response can occur even when the low-intake group has no demonstrated deficiency syndrome. organism: Male Zucker lean rats tissue_or_cell_type: Body composition and glucose/insulin tolerance experimental_model: Six-month metal-controlled low-chromium feeding experiment limitations: Low intake is not absolute zero exposure. Lack of abnormality in this rat model challenges essentiality claims but is not by itself a complete human requirement experiment. exposure: AIN-93G with no added chromium versus standard diet and supplemental 200 or 1,000 µg Cr/kg evidence_span: {"source_cache": "artifacts/chromium-research/21086001.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "308018cb4483d2b09c61c09f63a45811cc801750fd4f7922b8c9f010f5165abd", "start_char": 0, "end_char": 1561, "text_sha256": "308018cb4483d2b09c61c09f63a45811cc801750fd4f7922b8c9f010f5165abd"} [chromium-p21086001] Chromium is not an essential trace element for mammals: effects of a "low-chromium" diet. (2011). https://pubmed.ncbi.nlm.nih.gov/21086001/ DOI: 10.1007/s00775-010-0734-y

   Complete structured claim and evidence

4. Insulin-area reduction was significant within the D-chiro-inositol group, but the difference in change versus placebo had P=0.07.

   D-chiro-inositol → Plasma insulin response to glucose challenge source_derived_draftungraded
   Experimental context and source evidence

   evidence_span

   {"source_cache": "artifacts/inositol-research/10219066.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "2b70007c28cc93c6f18b457701ec8b034a3bbe888db05e85eca71d50199dc854", "start_char": 0, "end_char": 2121, "text_sha256": "2b70007c28cc93c6f18b457701ec8b034a3bbe888db05e85eca71d50199dc854"}

   experimental_model

   Randomized placebo-controlled trial

   exposure

   D-chiro-inositol 1200 mg/day for 6–8 weeks versus placebo; historical study regimen

   limitations

   Small short trial, not live-birth evidence. Within-group insulin improvement was stronger than the between-group comparison.

   nutrient_topic

   Inositol research collection; topical membership is not evidence of a direct dietary effect. · Inositol (stereoisomer family)

   organism

   Homo sapiens

   plain_language

   Improvement within one group alone was not a conventionally significant between-group result.

   primary_references

   [ino-p10219066] Ovulatory and metabolic effects of D-chiro-inositol in the polycystic ovary syndrome. (1999). https://pubmed.ncbi.nlm.nih.gov/10219066/ DOI: 10.1056/nejm199904293401703

   tissue_or_cell_type

   44 obese women with PCOS

   Inositol: synthesis, signaling, mineral interactions and conditional deficiency (2026-09-17) · lines 1302–1313

   AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Randomized placebo-controlled trial · source_derived_draft · unverified_draft

   ### ino-dci-insulin-uncertain Insulin-area reduction was significant within the D-chiro-inositol group, but the difference in change versus placebo had P=0.07. Condition category: normal nutrient_topic: Inositol research collection; topical membership is not evidence of a direct dietary effect. plain_language: Improvement within one group alone was not a conventionally significant between-group result. organism: Homo sapiens tissue_or_cell_type: 44 obese women with PCOS experimental_model: Randomized placebo-controlled trial limitations: Small short trial, not live-birth evidence. Within-group insulin improvement was stronger than the between-group comparison. exposure: D-chiro-inositol 1200 mg/day for 6–8 weeks versus placebo; historical study regimen evidence_span: {"source_cache": "artifacts/inositol-research/10219066.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "2b70007c28cc93c6f18b457701ec8b034a3bbe888db05e85eca71d50199dc854", "start_char": 0, "end_char": 2121, "text_sha256": "2b70007c28cc93c6f18b457701ec8b034a3bbe888db05e85eca71d50199dc854"} [ino-p10219066] Ovulatory and metabolic effects of D-chiro-inositol in the polycystic ovary syndrome. (1999). https://pubmed.ncbi.nlm.nih.gov/10219066/ DOI: 10.1056/nejm199904293401703

   Complete structured claim and evidence