Rethinking Heartburn
Betaine Hydrochloride: History, Mechanism, Evidence, and Current Context Disclaimer: This post is for general informational purposes only and is not intended as medical advice, diagnosis, or treatment. It does not constitute a recommendation to use or avoid any supplement. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication, especially if you have existing health conditions, take prescription drugs, are pregnant, or are breastfeeding. Individual results vary. Betaine hydrochloride (betaine HCl) is a dietary supplement that releases hydrochloric acid in the stomach. It has a documented history of use for low stomach acid (hypochlorhydria or achlorhydria) and continues to be discussed in both conventional and integrative medicine contexts. What It Is and How It Works Betaine is a naturally occurring compound (trimethylglycine) found in foods such as beets, spinach, and whole grains. The hydrochloride sa...