Component
Urinary citrate excretion
Citrate excreted in urine; fractional excretion and daily amount are distinct measures.
5 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
The potassium-depleted rats had reduced fractional urinary citrate excretion.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- cross_nutrient
- Citrate affects urinary calcium chemistry, but this depletion experiment measured citrate handling rather than stones.
- endpoint
- The potassium-depleted rats had reduced fractional urinary citrate excretion.
- experimental-exposure
- Rats given low-potassium diet for 14 days; urine citrate and renal cortical brush-border membrane vesicle transport kinetics.
- experimental_model
- Rats given low-potassium diet for 14 days; urine citrate and renal cortical brush-border membrane vesicle transport kinetics.
- limitations
- The transport and excretion measurements were parallel; downstream stone formation was not tested.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Rattus norvegicus
- plain_language
- Less filtered citrate remained in urine during depletion.
- primary_references
- [levi-1991-citrate] Chronic K depletion stimulates rat renal brush-border membrane Na-citrate cotransporter (1991). https://pubmed.ncbi.nlm.nih.gov/1683169/ DOI: 10.1152/ajprenal.1991.261.5.F767
- tissue_or_cell_type
- kidney and urine
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1204–1216
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Rats given low-potassium diet for 14 days; urine citrate and renal cortical brush-border membrane vesicle transport kinetics. · source_derived_draft · unverified_draft
### k-depletion-lowers-citrate-excretion The potassium-depleted rats had reduced fractional urinary citrate excretion. Condition category: nutrient_deficiency nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: Less filtered citrate remained in urine during depletion. organism: Rattus norvegicus tissue_or_cell_type: kidney and urine experimental_model: Rats given low-potassium diet for 14 days; urine citrate and renal cortical brush-border membrane vesicle transport kinetics. limitations: The transport and excretion measurements were parallel; downstream stone formation was not tested. cross_nutrient: Citrate affects urinary calcium chemistry, but this depletion experiment measured citrate handling rather than stones. experimental-exposure: Rats given low-potassium diet for 14 days; urine citrate and renal cortical brush-border membrane vesicle transport kinetics. endpoint: The potassium-depleted rats had reduced fractional urinary citrate excretion. [levi-1991-citrate] Chronic K depletion stimulates rat renal brush-border membrane Na-citrate cotransporter (1991). https://pubmed.ncbi.nlm.nih.gov/1683169/ DOI: 10.1152/ajprenal.1991.261.5.F767
Complete structured claim and evidencePotassium bicarbonate increased urine citrate excretion and clearance in the same comparison.
Experimental context and source evidence
- cross_nutrient
- Potassium-salt anion determines effects on urinary citrate, which participates in calcium complexation.
- endpoint
- Potassium bicarbonate increased urine citrate excretion and clearance in the same comparison.
- experimental-exposure
- Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day.
- experimental_model
- Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day.
- limitations
- Eight patients, short intervention; absence of potassium deficiency limits extrapolation to depletion. Alkali and citrate coeffects cannot be assigned to potassium cation alone.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Homo sapiens
- plain_language
- An alkali salt without administered citrate reproduced the citraturic response.
- primary_references
- [sakhaee-1991-salts] Contrasting effects of various potassium salts on renal citrate excretion (1991). https://pubmed.ncbi.nlm.nih.gov/1899422/ DOI: 10.1210/jcem-72-2-396
- tissue_or_cell_type
- kidney and urine
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1232–1244
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. · source_derived_draft · unverified_draft
### kbicarbonate-increases-urine-citrate Potassium bicarbonate increased urine citrate excretion and clearance in the same comparison. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: An alkali salt without administered citrate reproduced the citraturic response. organism: Homo sapiens tissue_or_cell_type: kidney and urine experimental_model: Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. limitations: Eight patients, short intervention; absence of potassium deficiency limits extrapolation to depletion. Alkali and citrate coeffects cannot be assigned to potassium cation alone. cross_nutrient: Potassium-salt anion determines effects on urinary citrate, which participates in calcium complexation. experimental-exposure: Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. endpoint: Potassium bicarbonate increased urine citrate excretion and clearance in the same comparison. [sakhaee-1991-salts] Contrasting effects of various potassium salts on renal citrate excretion (1991). https://pubmed.ncbi.nlm.nih.gov/1899422/ DOI: 10.1210/jcem-72-2-396
Complete structured claim and evidencePotassium chloride did not significantly raise urinary citrate in these participants without potassium deficiency.
Experimental context and source evidence
- cross_nutrient
- Potassium-salt anion determines effects on urinary citrate, which participates in calcium complexation.
- endpoint
- Potassium chloride did not significantly raise urinary citrate in these participants without potassium deficiency.
- experimental-exposure
- Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day.
- experimental_model
- Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day.
- limitations
- Eight patients, short intervention; absence of potassium deficiency limits extrapolation to depletion. Alkali and citrate coeffects cannot be assigned to potassium cation alone.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Homo sapiens
- plain_language
- Additional potassium without alkali did not reproduce the citrate response in this group.
- primary_references
- [sakhaee-1991-salts] Contrasting effects of various potassium salts on renal citrate excretion (1991). https://pubmed.ncbi.nlm.nih.gov/1899422/ DOI: 10.1210/jcem-72-2-396
- tissue_or_cell_type
- kidney and urine
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1246–1258
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. · source_derived_draft · unverified_draft
### kchloride-no-citraturia-nondepleted Potassium chloride did not significantly raise urinary citrate in these participants without potassium deficiency. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: Additional potassium without alkali did not reproduce the citrate response in this group. organism: Homo sapiens tissue_or_cell_type: kidney and urine experimental_model: Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. limitations: Eight patients, short intervention; absence of potassium deficiency limits extrapolation to depletion. Alkali and citrate coeffects cannot be assigned to potassium cation alone. cross_nutrient: Potassium-salt anion determines effects on urinary citrate, which participates in calcium complexation. experimental-exposure: Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. endpoint: Potassium chloride did not significantly raise urinary citrate in these participants without potassium deficiency. [sakhaee-1991-salts] Contrasting effects of various potassium salts on renal citrate excretion (1991). https://pubmed.ncbi.nlm.nih.gov/1899422/ DOI: 10.1210/jcem-72-2-396
Complete structured claim and evidencePotassium citrate increased urine citrate excretion and clearance in the small stone-patient comparison.
Experimental context and source evidence
- cross_nutrient
- Potassium-salt anion determines effects on urinary citrate, which participates in calcium complexation.
- endpoint
- Potassium citrate increased urine citrate excretion and clearance in the small stone-patient comparison.
- experimental-exposure
- Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day.
- experimental_model
- Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day.
- limitations
- Eight patients, short intervention; absence of potassium deficiency limits extrapolation to depletion. Alkali and citrate coeffects cannot be assigned to potassium cation alone.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Homo sapiens
- plain_language
- This salt raised citrate availability in urine, with accompanying alkali delivery.
- primary_references
- [sakhaee-1991-salts] Contrasting effects of various potassium salts on renal citrate excretion (1991). https://pubmed.ncbi.nlm.nih.gov/1899422/ DOI: 10.1210/jcem-72-2-396
- tissue_or_cell_type
- kidney and urine
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1218–1230
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. · source_derived_draft · unverified_draft
### kcitrate-increases-urine-citrate Potassium citrate increased urine citrate excretion and clearance in the small stone-patient comparison. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: This salt raised citrate availability in urine, with accompanying alkali delivery. organism: Homo sapiens tissue_or_cell_type: kidney and urine experimental_model: Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. limitations: Eight patients, short intervention; absence of potassium deficiency limits extrapolation to depletion. Alkali and citrate coeffects cannot be assigned to potassium cation alone. cross_nutrient: Potassium-salt anion determines effects on urinary citrate, which participates in calcium complexation. experimental-exposure: Eight patients with stones, without potassium deficiency, compared after two weeks of potassium citrate, bicarbonate, or chloride at 80 mEq/day. endpoint: Potassium citrate increased urine citrate excretion and clearance in the small stone-patient comparison. [sakhaee-1991-salts] Contrasting effects of various potassium salts on renal citrate excretion (1991). https://pubmed.ncbi.nlm.nih.gov/1899422/ DOI: 10.1210/jcem-72-2-396
Complete structured claim and evidence
Where it participates (unsigned role)
Bicarbonate salts and potassium gluconate increased bicarbonate in the CKD crossover; urinary citrate rose and ammonium fell.
Experimental context and source evidence
- cross_nutrient
- Salt anion -> bicarbonate/citrate/ammonium.
- experimental_model
- 31 participants; five-day randomized periods.
- limitations
- Short exposure and washout; unchanged diet advised rather than controlled.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Homo sapiens
- plain_language
- The accompanying anion changed the acid-base response.
- primary_references
- [k-ckd-salts2026] Randomized Cross-Over Trial of Electrolyte, Acid-Base and Blood Pressure Effects of Salt Supplements in CKD (2026). https://pubmed.ncbi.nlm.nih.gov/42381762/ DOI: 10.1016/j.ekir.2026.106619
- tissue_or_cell_type
- Plasma and urine
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1662–1672
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · 31 participants; five-day randomized periods. · source_derived_draft · unverified_draft
### k-ckd-salts-alkalizing-comparison Bicarbonate salts and potassium gluconate increased bicarbonate in the CKD crossover; urinary citrate rose and ammonium fell. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The accompanying anion changed the acid-base response. organism: Homo sapiens tissue_or_cell_type: Plasma and urine experimental_model: 31 participants; five-day randomized periods. limitations: Short exposure and washout; unchanged diet advised rather than controlled. cross_nutrient: Salt anion -> bicarbonate/citrate/ammonium. [k-ckd-salts2026] Randomized Cross-Over Trial of Electrolyte, Acid-Base and Blood Pressure Effects of Salt Supplements in CKD (2026). https://pubmed.ncbi.nlm.nih.gov/42381762/ DOI: 10.1016/j.ekir.2026.106619
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.