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Betaine HCl Side Effects & Safety

Evidence:Emerging
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Safety Profile

Overall safety rating: Safe with Caution

Potential Side Effects

  • Warmth or burning sensation in stomach (dose-limiting — reduce dose if this occurs)
  • Heartburn if taken without food or at excessive doses
  • Contraindicated in those with active ulcers, gastritis, or H. pylori infection

Drug & Supplement Interactions

  • NSAIDs (aspirin, ibuprofen) — do NOT combine; increased risk of gastric ulceration
  • Corticosteroids — increased ulcer risk when combined with supplemental acid
  • PPIs/H2 blockers — betaine HCl works against the mechanism of these drugs; do not combine

Maximum Dose

Do not exceed: Titrate to warm sensation in stomach, then reduce by one capsule; typically 1,950-3,250mg/meal maximum

Full Betaine HCl Guide

References

  1. RCTYago MR, Frymoyer AR, Smelick GS, et al. (2013). Gastric reacidification with betaine HCl in healthy volunteers with rabeprazole-induced hypochlorhydria. Molecular Pharmaceutics. DOI PubMed
  2. ReviewMartinsen TC, Bergh K, Waldum HL. (2005). Gastric juice: a barrier against infectious diseases. Basic & Clinical Pharmacology & Toxicology. DOI PubMed
  3. RCTOstojic SM, Niess B, Stojanovic M, Obrenovic M (2013). Co-administration of methyl donors along with guanidinoacetic acid reduces the incidence of hyperhomocysteinaemia compared with guanidinoacetic acid administration alone.. The British journal of nutrition. DOI PubMed