NutriStack
Betaine HCL and Iron, a synergy.
Betaine HCL lowers stomach pH, which can improve the solubility and absorption of non-heme iron, particularly in people with low stomach acid.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Betaine HCL and Iron
- Pair type
- Synergy
- Evidence (highest tier)
- Emerging
- Source citations
- 2 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Supplement
- Last verified
- May 30, 2026
Synergy · Emerging evidence
Synergy
What is happening. Betaine HCL lowers stomach pH, which can improve the solubility and absorption of non-heme iron, particularly in people with low stomach acid.
Mechanism. An acidic gastric environment helps reduce ferric iron to the more absorbable ferrous form and keeps non-heme iron soluble in the upper intestine, so supplemental gastric acid from betaine HCL can enhance iron uptake when acid is deficient.
Recommendation. May aid iron absorption in people with hypochlorhydria. Take with food and monitor for gastric irritation; consult a clinician if you have a history of ulcers.
Sources (2)
- Champagne ET. Low gastric hydrochloric acid secretion and mineral bioavailability. Advances in Experimental Medicine and Biology, 1989.
- Yago MR, et al. Gastric reacidification with betaine HCl in healthy volunteers with rabeprazole-induced hypochlorhydria. Molecular Pharmaceutics, 2013.
Stack Score
How this pair moves the number.
Effect on the composite score
If both Betaine HCL and Iron are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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