Last verified: 58 days ago
Sodium Carbonate
Also known as: soda ash, washing soda, Na2CO3, sodium carbonate anhydrous
Evidence under review. — Not yet rated
Industrial alkaline salt with limited human health uses. Not a proven supplement ingredient.
-
What it does
Sodium carbonate is an alkaline salt (washing soda) used industrially and in some topical or oral hygiene applications. In the provided research, it appears as a 5% topical solution for treating...
-
Evidence quality
Evidence base hasn't been formally rated yet. See research below.
-
Clinical dose
No established dose for human supplementation
-
Found in
What the Science Says
Sodium carbonate is an alkaline salt (washing soda) used industrially and in some topical or oral hygiene applications. In the provided research, it appears as a 5% topical solution for treating tungiasis (a parasitic flea infection), as part of an oral spray for dry-mouth conditions in Sjögren's syndrome patients, and as an oxygen-boosting agent in fish farming. There is no established dose or clinical evidence supporting its use as a human dietary supplement.
What It Doesn't Do
Not a proven supplement for any health condition. No evidence it boosts energy, supports gut health, or detoxifies the body. Don't confuse it with sodium bicarbonate (baking soda), which has more human research. No evidence it improves athletic performance when taken orally by humans.
Evidence-Based Benefits
A 5% topical solution kills flea parasites in tungiasis, though less effectively than NYDA dimeticone.
Weak EvidenceEffective at: 5% topical solution applied to affected skin
Supporting studies (click to view on PubMed):
A sodium bicarbonate and xylitol spray may improve salivary flow and gum health in Sjögren's syndrome patients.
Weak EvidenceEffective at: No established dose from provided studies
Supporting studies (click to view on PubMed):
Absorption & Bioavailability
Unknown for oral supplementation in humans. No pharmacokinetic data provided in the available studies.
Red Flags to Watch For
- High doses in aquaculture studies caused fish hyperactivity, abnormal swimming, convulsions, and death — raising safety concerns at elevated concentrations
- Flagged as a milk adulterant by food safety regulators — its presence in food products is a violation of food safety standards
- No human clinical trials support its use as a dietary supplement
- Highly alkaline compound that can cause irritation or harm to mucous membranes at elevated concentrations
- Widely used as an industrial chemical (cement, dye processing, waste treatment) — not a traditional supplement ingredient
Products Containing Sodium Carbonate
See how Sodium Carbonate is used in these analyzed products:
Frequently Asked Questions
What does Sodium Carbonate do?
Industrial alkaline salt with limited human health uses. Not a proven supplement ingredient.
What is the effective dose of Sodium Carbonate?
No established dose for human supplementation
Is Sodium Carbonate safe?
High doses in aquaculture studies caused fish hyperactivity, abnormal swimming, convulsions, and death — raising safety concerns at elevated concentrations
What doesn't Sodium Carbonate do?
Not a proven supplement for any health condition.
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25