Component

Potassium bicarbonate

KHCO3, delivering potassium and bicarbonate together.

5 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

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.

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.

Recorded relationships

What it acts on

  1. Bicarbonate salts and potassium gluconate increased bicarbonate in the CKD crossover; urinary citrate rose and ammonium fell.

    Potassium bicarbonate → Plasma bicarbonate concentration source_derived_draftungraded
    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

  2. Potassium bicarbonate increased urine citrate excretion and clearance in the same comparison.

    Potassium bicarbonate → Urinary citrate excretion source_derived_draftungraded
    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 evidence

Where it participates (unsigned role)

  1. The bicarbonate-containing arms reduced calcium excretion relative to non-bicarbonate arms in the older-adult trial; a potassium main effect was not significant.

    Bicarbonate ion → Urinary calcium excretion source_derived_draftungraded
    Experimental context and source evidence
    cross_nutrient
    Bicarbonate coadministration modifies the calcium response attributed to potassium salts.
    endpoint
    The bicarbonate-containing arms reduced calcium excretion relative to non-bicarbonate arms in the older-adult trial; a potassium main effect was not significant.
    experimental-exposure
    171 adults aged at least 50 randomized to placebo, KHCO3, NaHCO3, or KCl at 67.5 mmol/day for three months; 162 analyzed; all received calcium and vitamin D.
    experimental_model
    171 adults aged at least 50 randomized to placebo, KHCO3, NaHCO3, or KCl at 67.5 mmol/day for three months; 162 analyzed; all received calcium and vitamin D.
    limitations
    Pooled factorial comparison, calcium/vitamin D co-supplementation, three-month surrogate endpoint; not evidence of fracture prevention or universal potassium neutrality.
    nutrient_topic
    Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
    organism
    Homo sapiens
    plain_language
    The calcium-loss effect tracked the alkali component rather than the presence of potassium in the salt.
    primary_references
    [dawson-hughes-2009-bicarbonate] Treatment with Potassium Bicarbonate Lowers Calcium Excretion and Bone Resorption in Older Men and Women (2009). https://pmc.ncbi.nlm.nih.gov/articles/PMC2630872/ DOI: 10.1210/jc.2008-1662
    tissue_or_cell_type
    kidney and urine

    Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1260–1272

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · 171 adults aged at least 50 randomized to placebo, KHCO3, NaHCO3, or KCl at 67.5 mmol/day for three months; 162 analyzed; all received calcium and vitamin D. · source_derived_draft · unverified_draft

    ### bicarbonate-component-lowers-calciuria The bicarbonate-containing arms reduced calcium excretion relative to non-bicarbonate arms in the older-adult trial; a potassium main effect was not significant. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The calcium-loss effect tracked the alkali component rather than the presence of potassium in the salt. organism: Homo sapiens tissue_or_cell_type: kidney and urine experimental_model: 171 adults aged at least 50 randomized to placebo, KHCO3, NaHCO3, or KCl at 67.5 mmol/day for three months; 162 analyzed; all received calcium and vitamin D. limitations: Pooled factorial comparison, calcium/vitamin D co-supplementation, three-month surrogate endpoint; not evidence of fracture prevention or universal potassium neutrality. cross_nutrient: Bicarbonate coadministration modifies the calcium response attributed to potassium salts. experimental-exposure: 171 adults aged at least 50 randomized to placebo, KHCO3, NaHCO3, or KCl at 67.5 mmol/day for three months; 162 analyzed; all received calcium and vitamin D. endpoint: The bicarbonate-containing arms reduced calcium excretion relative to non-bicarbonate arms in the older-adult trial; a potassium main effect was not significant. [dawson-hughes-2009-bicarbonate] Treatment with Potassium Bicarbonate Lowers Calcium Excretion and Bone Resorption in Older Men and Women (2009). https://pmc.ncbi.nlm.nih.gov/articles/PMC2630872/ DOI: 10.1210/jc.2008-1662
    Complete structured claim and evidence

  2. Five-day dietary potassium withdrawal increased fasting and daily urinary calcium excretion whether the withdrawn salt was KCl or KHCO3.

    Potassium → Urinary calcium excretion source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    nutrient_deficiency Imported condition classification; unverified.
    cross_nutrient
    Potassium deprivation increases renal calcium loss in a controlled human dietary model.
    endpoint
    Five-day dietary potassium withdrawal increased fasting and daily urinary calcium excretion whether the withdrawn salt was KCl or KHCO3.
    experimental-exposure
    Healthy adults on controlled diets; salt loading in ten participants and five-day potassium deprivation with recovery in two groups of four.
    experimental_model
    Healthy adults on controlled diets; salt loading in ten participants and five-day potassium deprivation with recovery in two groups of four.
    limitations
    Small controlled metabolic study; sodium balance, extracellular volume, phosphate handling and calcitriol were possible mediators rather than proven causal links.
    nutrient_topic
    Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
    organism
    Homo sapiens
    plain_language
    Potassium deprivation changed calcium retention even when alkali withdrawal was not the only explanation.
    primary_references
    [lemann-1991-calciuria] Potassium administration reduces and potassium deprivation increases urinary calcium excretion in healthy adults [corrected] (1991). https://pubmed.ncbi.nlm.nih.gov/1648646/ DOI: 10.1038/ki.1991.123
    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 1274–1286

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Healthy adults on controlled diets; salt loading in ten participants and five-day potassium deprivation with recovery in two groups of four. · source_derived_draft · unverified_draft

    ### human-k-withdrawal-increases-calciuria Five-day dietary potassium withdrawal increased fasting and daily urinary calcium excretion whether the withdrawn salt was KCl or KHCO3. Condition category: nutrient_deficiency nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: Potassium deprivation changed calcium retention even when alkali withdrawal was not the only explanation. organism: Homo sapiens tissue_or_cell_type: kidney and urine experimental_model: Healthy adults on controlled diets; salt loading in ten participants and five-day potassium deprivation with recovery in two groups of four. limitations: Small controlled metabolic study; sodium balance, extracellular volume, phosphate handling and calcitriol were possible mediators rather than proven causal links. cross_nutrient: Potassium deprivation increases renal calcium loss in a controlled human dietary model. experimental-exposure: Healthy adults on controlled diets; salt loading in ten participants and five-day potassium deprivation with recovery in two groups of four. endpoint: Five-day dietary potassium withdrawal increased fasting and daily urinary calcium excretion whether the withdrawn salt was KCl or KHCO3. [lemann-1991-calciuria] Potassium administration reduces and potassium deprivation increases urinary calcium excretion in healthy adults [corrected] (1991). https://pubmed.ncbi.nlm.nih.gov/1648646/ DOI: 10.1038/ki.1991.123
    Complete structured claim and evidence

  3. All three potassium salts increased plasma potassium despite their different acid-base effects.

    Potassium ion → Plasma potassium concentration source_derived_draftungraded
    Experimental context and source evidence
    experimental_model
    Same CKD crossover.
    limitations
    Cannot infer long-term food effects.
    nutrient_topic
    Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
    organism
    Homo sapiens
    plain_language
    An alkalizing potassium salt did not remove the potassium rise in this study.
    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

    Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 1674–1683

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Same CKD crossover. · source_derived_draft · unverified_draft

    ### k-ckd-salts-potassium-not-rescued-by-alkali All three potassium salts increased plasma potassium despite their different acid-base effects. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: An alkalizing potassium salt did not remove the potassium rise in this study. organism: Homo sapiens tissue_or_cell_type: Plasma experimental_model: Same CKD crossover. limitations: Cannot infer long-term food effects. [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

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

    Evidence, AI assistance and curation standards