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Tier-CPublic-ready7/5/2026

Sodium Bicarbonate

Exercise performance and recovery is the main area connected here, and any felt benefit should be read together with the human evidence base.

Some human supplement-context evidence is present and directly informs the score.

Representative tier calculated from paper evidence that passed the collection audit.

Papers analyzed
62
Caution signal
Low
Representative score
56.5
Exercise performance and recovery

Main benefit evidence

The representative ingredient tier is calculated from these target-level evidence groups.

Exercise performance and recovery
4 studiesTier-B
Exercise performance and recovery
Fairly consistent positive signal in studiesFelt benefit focusSupplement context

Potential benefit studied in Exercise performance and recovery.

Evidence score
58.0
Study context
Supplement context

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Recent research

Updated This Month10 new papers

Observed range in repeated studies

This range includes studies in specific patient groups. It is not a general dose or recommendation.

Lower observed study value
1
g/day
Higher observed study value
5
g/day
Only ranges repeated in human, oral, single-ingredient studies are shown.
Not personal dosing instructions, recommendations, or safety limits.

Side effects and combination findings in studies

Findings from studies of this ingredient alone are separated from findings involving another supplement or medication.

Caution index
0.8
Caution band: Low
Caution signals
5
Side effects + combos + curated rules
Key precautions
No curated contraindication rule is available yet, but literature caution signals are shown below.
1 combo signals and 0 added-signal combos shown below.
These are signals reported in studies. They do not predict what will happen to an individual.

Findings to review with care

Side effects reported for the ingredient alone are separated from findings involving another supplement or medication.

Side effects reported when this ingredient was used alone

Symptoms or adverse events reported in studies of this ingredient without another active ingredient.

Metabolic alkalosis and hypernatremia1 papers
Excessive ingestion of sodium bicarbonate causes life-threatening metabolic alkalosis, hypernatremia, and potential gastric rupture.Human studies · Systematic review
Acid-base disorder and electrolyte imbalances1 papers
Overuse of sodium bicarbonate can lead to severe toxicity, including metabolic alkalosis, hypokalemia, and hypochloremia.Human studies · Systematic review
Sodium bicarbonate toxicity1 papers
This educational case study describes the signs, symptoms, and management of acute sodium bicarbonate toxicity in a simulated clinical setting for emergency medicine residents, noting the condition as a rare medical emergency requiring fluid and electrolyte resuscitation.Human studies · Randomized controlled trial
Adverse effect signal1 papers
Overuse of sodium bicarbonate was reported to cause severe toxicity, including metabolic alkalosis and associated electrolyte imbalances such as hypokalemia and hypochloremia.Human studies · Study type not identified
Bloating, nausea, vomiting, and abdominal pain1 papers
The most common side-effects of sodium bicarbonate supplementation are bloating, nausea, vomiting, and abdominal pain, which vary in incidence and severity but are generally low.Human studies · Systematic review

Positive combinations studied

Positive combination findings are separated by how the study compared the groups. This is not a recommendation to combine them.

Positive findings when used together

The combination had a positive result, but the contribution of each ingredient could not be separated.

크레아틴Combined creatine and sodium bicarbonate supplementation significantly improved 30-m sprint and arrowhead agility performance in elite soccer players compared to placebo.

Evidence summaries

Paper IDs and full lists are private. Only study types and summaries are shown.

Key Evidence #1
Public scholarly dataCitation signal: 789
rct

[Abstract]: Bicarbonate supplementation preserves renal function in experimental chronic kidney disease (CKD), but whether the same benefit occurs in humans is unknown. Here, we randomly assigned 134 adult patients with CKD (creatinine clearance [CrCl] 15 to 3

Key Evidence #2
Public scholarly dataCitation signal: 134
rct

[Abstract]: Acidosis causes malnutrition in peritoneal dialysis (PD) patients. The effect of oral bicarbonate in PD patients with Kt/V <2.1 has not been studied. We randomly assigned 60 PD patients with acidosis and Kt/V <2.1 to oral sodium bicarbonate (0.9 g

Key Evidence #3
Public scholarly dataCitation signal: 133
rct

[Abstract]: Metabolic acidosis contributes to muscle breakdown in patients with CKD, but whether its treatment improves functional outcomes is unknown. The choice of dose and tolerability of high doses remain unclear. In CKD patients with mild acidosis, this s

3 more summariesLimited representative sample by study type.
>
Public scholarly dataCitation signal: 112
review

[Abstract]: Based on a comprehensive review and critical analysis of the literature regarding the effects of sodium bicarbonate supplementation on exercise performance, conducted by experts in the field and selected members of the International Society of Spor

Public scholarly dataCitation signal: 110
rct

[Abstract]: Sodium bicarbonate ingestion has been shown to improve performance in single-bout, high intensity events, probably due to an increase in buffering capacity, but its influence on single-bout swimming performance has not been investigated. The effect

Public scholarly dataCitation signal: 105
rct

[Abstract]: This study investigated the effect of ingesting 0.3 g/kg body weight (BW) of sodium bicarbonate (NaHCO₃) on physiological responses, gastrointestinal (GI) tolerability, and sprint performance in elite rugby union players. Twenty-five male rugby pla

Sodium Bicarbonate
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