Sodium bicarbonate

View my plan →

The short answer

A well-supported ergogenic aid for selected high-intensity efforts, limited by GI and sodium burden.

Evidence and scope: Supported for specific outcomes
This status does not grade the ingredient for every goal, outcome, or person.
Important limitation: Evidence supports a specific outcome, not a general wellness or longevity effect.
Before deciding: Key concern: Hypertension, heart/kidney disease, alkalosis, sodium restriction, and medicine absorption require review.

01 / PRACTICAL GUIDE

Dose, absorption, and combinations

These are indication-specific reference or studied ranges—not a personalized prescription. Start with the objective, then check the form, label, medicines, and health conditions.

Reference range by objective

Sports performance0.2–0.3 g/kg 60–180 minutes before exercise; split protocols may improve tolerance

Reference or studied range—not a personalized prescription. The product label or a clinician may specify a different dose.

Dose source ↗

More is not automatically better. A clinician or product label may specify a different amount.

Absorption / solubilityWater-soluble

Water-soluble or readily water-dispersible. This does not mean excess is always harmless.

How it is commonly taken

Trial it in training with food and fluid, never first on competition day.

Do not combine casually

Hypertension, heart/kidney disease, alkalosis, sodium restriction, and medicine absorption require review.

Dose and use source ↗

Dose and use links lead to primary or official source material. Search links are discovery tools, not proof that every returned paper applies.

02 / EVIDENCE

What the research says

We keep supportive, mixed, negative, safety, and contextual findings together. The headline never replaces the underlying papers.

1research papers in this ledger

11unique primary studies represented

126unique participants represented

These are audited counts for this JIVANA collection, not search-result totals. Participants are counted once when multiple papers use the same cohort; review papers are not added again to participant totals.

Open the research timelineResearch timeline

Entries are ordered by publication year. A study period appears only when the source reports it.

2025

Mixed or qualifiedPMID 41416636

Single-dose sodium bicarbonate and continuous running performance

After accounting for gastrointestinal withdrawals and publication bias, the mixed-sex performance benefit was negligible and nonsignificant. Gastrointestinal symptoms occurred in 29.5% versus 2.6% with placebo and withdrawals were more frequent; possible male-only benefit is exploratory.

Published: 2025n=126 participants11 primary studies represented

Study design and methods

Design: GRADE-assessed systematic review and meta-analysis of 11 randomized double-blind crossover trials
Population: 126 participants, 84% male, in continuous running tests lasting 1–30 minutes
Intervention: A typical single dose of sodium bicarbonate 0.3 g/kg versus placebo
Outcome: Running performance, gastrointestinal symptoms, and gastrointestinal-related withdrawal

Funding or conflict note: The authors reported no potential conflicts of interest.

Open research record ↗

Unscreened discovery appendix—not evidence176 candidate publicationsSearch run: Aug 21, 2026

Complete for the displayed PubMed query at the search timestamp—not for all databases or every possible synonym. Candidates can be irrelevant, duplicate the same study, or report negative findings. They are never summed as evidence or participants until screened.

03 / SOURCES

Start with the source material

Official evidence overviewPubMed bounded human-evidence search Live PubMed discovery searchNational Library of Medicine

The live search is for discovery only. Search-result counts change and are not included in the audited totals above.

Recent PubMed discovery recordsDirect links to the first 12 records returned by the reproducible search. These are discovery candidates—not reviewed summaries or a count of supportive findings.

04 / EXPERT CONTEXT

Expert context—not evidence

Expert positions are dated context—not scientific evidence. They never raise the evidence status or become consensus by repetition.

No direct, source-verified endorsement is currently recorded. Research authorship or discussion alone is not treated as endorsement.