Betaine HCl + Pepsin
Supplements low stomach acid — addressing one of the most overlooked causes of indigestion, bloating, and reflux symptoms (paradoxically, low acid often presents as reflux).
Strong for documented hypochlorhydria (low stomach acid). Useful in: SIBO recovery, post-PPI rebound, age-related digestive decline, mineral and B12 absorption issues. Effects: within meals (digestive symptoms), weeks (mineral/B12 status).
Hydrochloric acid is what makes the stomach work — it sterilises food, denatures protein, activates pepsin (the protein-digesting enzyme), and signals downstream digestion (gallbladder, pancreas, lower esophageal sphincter). Stomach acid production declines with age, with chronic stress, with H. pylori infection, and dramatically with PPI use. Counterintuitively, low stomach acid often mimics high — same reflux symptoms, same bloating. Betaine HCl with pepsin provides exogenous acid + enzyme to support the meal. Not for everyone — but for those who actually need it, it's one of the most immediately noticeable supplements.
- Form
- Betaine HCl with pepsin capsules. Standard doses are 500–650 mg per capsule.
- Dose
- Titrate up: start with 1 capsule (~650 mg) with a protein-containing meal. If no warmth, add a capsule at the next meal. Increase until you feel mild warmth, then drop back one capsule. Most people land at 1–4 capsules per meal.
- Timing
- Mid-meal or right after taking a few bites of food. Don't take on empty stomach. Don't take with very small / non-protein meals.
- Schedule
- With protein-containing meals. Reduce dose as stomach function recovers (months to years).
- Side effects
- Burning sensation in stomach or throat at too high a dose — drop one capsule. Heartburn (paradoxically) if you don't actually have low acid. GI upset.
- Interactions
- NSAIDs, aspirin — additive irritation, avoid combining. PPIs and H2 blockers — opposing mechanisms, undermines the purpose. Steroids — additive ulcer risk.
- Contraindications
- Active peptic ulcer or gastritis — adding acid to an irritated stomach is harmful. On PPIs, H2 blockers, or NSAIDs. Hiatal hernia. Pregnancy.
- Lab markers
- Heidelberg pH test (gold standard for stomach acid — rarely done). Indirect markers: ferritin (low absorption), B12, magnesium, zinc.
- Food sources
- Not present in food as such. Apple cider vinegar (acetic acid) is a milder, traditional approach to mealtime acid support.
Pairs with
Digestive enzymes (work together). Bile salts / ox bile if fat digestion is also impaired. Probiotics, L-glutamine (downstream gut support).
within Enzymes