Betaine HCL
Other ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Supplemental hydrochloric acid for people with low stomach acid (hypochlorhydria).
Exploratory record, not a reviewed medical publication.
See the editorial and medical-review policies for the publication gate.
This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Betaine HCL is an other most often used for digestion, nutrient absorption, low stomach acid support. NutriStack rates the overall evidence as emerging. A typical adult dose is 650-2,600 mg per protein-containing meal, commonly taken as betaine hcl with pepsin. This profile indexes 12 sources.
The bottom line
Evidence rating emerging. Most-documented uses: digestion, nutrient absorption, low stomach acid support. 12 sources indexed (2004–2024), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Provides exogenous HCl to supplement endogenous gastric acid production. Lowers stomach pH to optimal 1.5-2.5 for pepsin activation, protein digestion, mineral absorption, and pathogen defense.4,7
Dosing & protocol.
What it actually costs.
Real-world pricing across three quality tiers. Assumes Betaine HCl with Pepsin.
Assumes 650-2,600 mg with a protein-containing meal. Vendor basis: NOW/iHerb, Vitacost, Thorne, and Amazon marketplace; premium reflects multi-capsule meal dosing. Updated 2026-05-28.
The same dose, as food.
How much you'd eat to match a supplemental dose.
Foods such as beets, spinach, quinoa, wheat bran, and shrimp provide betaine, but not the hydrochloride acid form used for meal-time gastric support.
Full safety detail.
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
3- 1Effects of chronic betaine supplementation on exercise performance: Systematic review and meta-analysis.PMIDZawieja E, Machek S, Zanchi NE, Cholewa J, Woyniewicz M · Journal of Sports Sciences · 2024
Chronic betaine supplementation improved specific exercise performance outcomes including bench press throw power and vertical jump power, though overall effects on endurance were mixed.
- 2Effects of betaine supplementation on cardiovascular markers: A systematic review and Meta-analysis.PMIDAshtary-Larky D, Bagheri R, Ghanavati M, Asbaghi O, Tinsley GM, Mombaini D et al. · Critical Reviews in Food Science and Nutrition · 2022
Betaine supplementation significantly reduced homocysteine levels and improved lipid profiles, reducing total cholesterol while increasing HDL cholesterol.
- 3Betaine supplementation fails to improve body composition: a systematic review and meta-analysis.PMIDAshtary-Larky D, Bagheri R, Tinsley GM, Asbaghi O, Salehpour S, Kashkooli S et al. · British Journal of Nutrition · 2022
Betaine supplementation did not significantly improve overall body composition measures including body fat percentage, lean mass, or body weight in the meta-analysis of available RCTs.
Randomized controlled trials
3- 4Food, Acid Supplementation and Drug Absorption - a Complicated Gastric Mix: a Randomized Control TrialPMIDYago MR et al. · Pharmaceutical Research · 2019
4500 mg betaine HCl reacidified gastric pH to baseline in 17.3 min after food, compared to 49.7 min without supplementation.
- 5The use of betaine HCl to enhance dasatinib absorption in healthy volunteers with rabeprazole-induced hypochlorhydriaPMIDYago MR et al. · Clinical Pharmacology & Therapeutics · 2014
Coadministration of betaine HCl increased dasatinib Cmax and AUC by 15- and 6.7-fold respectively, restoring drug exposure to 105-121% of control.
- 6Gastric reacidification with betaine HCl in healthy volunteers with rabeprazole-induced hypochlorhydriaPMIDYago MR et al. · Molecular Pharmaceutics · 2013
Betaine HCl lowered gastric pH by 4.5 units (from 5.2 to 0.6) with rapid onset (mean 6.3 min to pH <3), though effect was temporary (73 min at pH <3).
Reviews & position papers
5- 7Creating a Framework for Treating Autoimmune Gastritis-The Case for Replacing Lost AcidPMIDTaylor L, McCaddon A, Wolffenbuttel BHR · Nutrients · 2024
Taylor L, McCaddon A, Wolffenbuttel BHR. Creating a Framework for Treating Autoimmune Gastritis-The Case for Replacing Lost Acid. Nutrients. 2024
- 8Meal-Time Supplementation with Betaine HCl for Functional Hypochlorhydria: What is the Evidence?PMIDGuilliams TG et al. · Integrative Medicine (Encinitas) · 2020
Extended hypochlorhydria may contribute to poor protein digestion, reduced micronutrient absorption, and increased risk of dysbiosis or SIBO.
- 9Meal Effects Confound Attempts to Counteract Rabeprazole-Induced Hypochlorhydria Decreases in Atazanavir AbsorptionPMIDFaber KP, Wu HF, Yago MR et al. · Pharmaceutical research · 2017
Faber KP, Wu HF, Yago MR et al.. Meal Effects Confound Attempts to Counteract Rabeprazole-Induced Hypochlorhydria Decreases in Atazanavir Absorption. Pharmaceutical research. 2017
- 10Effects of betaine supplementation on performance and body composition: a review of randomized controlled trialsSource linkedPMIDCholewa JM, Wyszczelska-Rokiel M, Glowacki R et al. · J Int Soc Sports Nutr · 2014
- 11Betaine in human nutritionSource linkedPMIDCraig SA · Am J Clin Nutr · 2004
Observational studies
1- 12Use of Betaine HCl with Pepsin in Esophageal Cancer Patient: A Case ReportPMIDNovin ZS et al. · Integrative Cancer Therapies · 2024
HCl/betaine/pepsin supplementation is usually well tolerated and can stabilize physiological processes, support nutrient assimilation, and aid protein digestion.
Common questions.
Quick answers about Betaine HCL, drawn from the data on this page.
What is Betaine HCL?
Supplemental hydrochloric acid for people with low stomach acid (hypochlorhydria).
What is Betaine HCL used for?
Commonly cited benefits of Betaine HCL include: Digestion; Nutrient absorption; Low stomach acid support. NutriStack rates the overall evidence as emerging.
What is a typical dose of Betaine HCL?
A typical adult dose of Betaine HCL is 650-2,600 mg per protein-containing meal. The commonly recommended form is Betaine HCl with pepsin. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Betaine HCL?
Reported side effects include heartburn (indicates sufficient acid, reduce dose), gi warmth. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Betaine HCL?
NutriStack rates this as Emerging, meaning early RCT signal, mechanistic data, or limited human evidence. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Use this with your stack
Betaine HCL in NutriStack.
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