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Compound

Sodium Bicarbonate

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Sodium Bicarbonate. Extracellular buffer used for high-intensity exercise capacity.

How it works. Raises blood bicarbonate, allowing greater H+ efflux from muscle.

What the research supports. 1 graded claims. Strongest: Improves performance in 1–7 min events (strong).

How much to take. Typical dose: 0.2–0.3 g/kg 60–90 min pre-exercise.

Side effects and interactions. 1 medication interaction listed. Serious: Avoid in hypertension/CHF.

Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).

Common forms. Available as Capsule or softgel, Powder, Sublingual or buccal, Liposomal liquid.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Sodium Bicarbonate. Anecdotes are not medical advice.

Sodium Bicarbonate. Extracellular buffer used for high-intensity exercise capacity.

Molecular structureCHNaO3 · 84.007 g/mol

What it is

Extracellular buffer used for high-intensity exercise capacity.

Also called

Baking soda

Food sources

Endogenously produced or biosynthesized moleculeStandardized pharmaceutical- or food-grade supplementCombined with cofactors that improve absorption or activity

Goals

Athletic Performance

How it works

Raises blood bicarbonate, allowing greater H+ efflux from muscle.

Pathways

  • Raises blood bicarbonate, allowing greater H+ efflux from muscle

Effects

  • +performance in 1–7 min events supports

What the research supports

Improves performance in 1–7 min eventsstrong

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
0.2–0.3 g/kg 60–90 min pre-exercise
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith small carb meal
Best formMost evidence is based on the capsule or softgel form.
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Side effects & interactions

Common side effects

  • GI upset
  • Bloating

Serious

  • Avoid in hypertension/CHF

Medication interactions

Prescription medications (general)minor

Always disclose Sodium Bicarbonate use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
  • Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.

Common forms

  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Key studies

8 studies cited in total.

NaHCO3 meta-analysis on performance ↗
Meta-analysis · Sports Med · 2011

Small but consistent ergogenic effect.

PubMed: Sodium Bicarbonate — Improves performance in 1–7 min events ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Sodium Bicarbonate and "Improves performance in 1–7 min events". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Sodium Bicarbonate — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Sodium Bicarbonate and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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