Compound or practice · Nutrition
Betaine HCl
A stomach-acid supplement for 'low acid' — plausible in true hypochlorhydria, misused broadly, and risky on acid-sensitive guts.
- Overall grade
- Grade D
- Last revised
- 1
- graded outcome
- 0
- references listed
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
1 at grade D — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Digestion (true hypochlorhydria)Evidence grade D
Context-dependent
Unclearlow
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Digestion (true hypochlorhydria) (grade D).
- Caution with PPIs: Directly opposes acid-suppressing drugs — don't combine.
Interactions
Documented pairings with supplements and medicines. A medicine on this list is a conversation for whoever prescribes it.
PPIsCaution
Directly opposes acid-suppressing drugs — don't combine.
The evidence in words
What it is
Betaine hydrochloride is used to raise stomach acidity in people believed to have low acid (hypochlorhydria).
How it works
It transiently lowers gastric pH, which can aid protein and mineral digestion when acid is genuinely low.
What the evidence shows
Small studies show it can temporarily restore gastric acidity and improve absorption of some drugs/nutrients in low-acid states. Rigorous outcome evidence is scarce, and self-diagnosis of 'low acid' is unreliable.
Safety & interactions
Can worsen reflux/ulcers and irritate the stomach; never combine with acid-reducing drugs; don't use with NSAIDs. ppi — Directly opposes acid-suppressing drugs — don't combine.
Bottom line
Only sensible for genuine, ideally-tested low stomach acid — not a catch-all for indigestion. It can harm acid-sensitive guts; get evaluated first.
Related reading
Entries that share this one's tags or conditions.
- Betaine HCl for Digestion (true hypochlorhydria)Evidence grade D — Context-dependentEvidence grade D
- Betaine HCl: side effects, safety & interactionsCan worsen reflux/ulcers and irritate the stomach; never combine with acid-reducing drugs; don't use with NSAIDs.Evidence grade D
- Digestive EnzymesEssential in true enzyme insufficiency; mostly unnecessary for the general 'bloating' crowd — except lactase for lactose intolerance.Evidence grade C
- Peppermint OilEnteric-coated peppermint oil is a genuinely effective, guideline-endorsed IBS treatment.Evidence grade B
Sources
This entry lists no references of its own.
Last revised . A grade is this entry's reading of the evidence, not medical advice.