Betaine HCl
amino acids
Betaine HCl is a compound derived from the amino acid betaine, combined with hydrochloric acid to support digestive function and stomach acid levels. It is primarily used to enhance protein digestion and nutrient absorption in individuals with low stomach acid. The supplement may also support liver function and methylation processes in the body.
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Benefits
Dosage
Typical Dose
500-650 mg per dose with meals
Upper Limit
1500-2000 mg daily in divided doses
Timing
With largest meal of the day, typically lunch or dinner
Forms & Bioavailability
Betaine HCl capsule
90-95%
Betaine HCl tablet
85-90%
Betaine HCl powder
90-95%
Side Effects
Interactions
Research Summary
Research on Betaine HCl is limited but suggests potential benefits for individuals with hypochlorhydria (low stomach acid). Some studies indicate benefits for protein digestion and nutrient absorption, though evidence in healthy individuals is modest. Most clinical use is empirical, with stronger evidence needed from larger-scale human trials.
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The Bottom Line on Betaine HCl
Betaine HCl is moderately researched with promising but sometimes mixed evidence.It is most commonly used for supports healthy stomach acid levels and protein digestion and may improve nutrient absorption and bioavailability. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for Betaine HCl
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