Interaction databaseSupplement × PrescriptionReviewed May 2026

Esomeprazole and Zinc, a caution.

Chronic esomeprazole therapy reduces zinc absorption and lowers body zinc stores. In a controlled study, plasma zinc rose 126% with supplementation in controls but only 37% in long-term PPI users, and baseline zinc was about 28% lower in PPI users. Lower zinc can impair immune function and wound healing.

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
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At a glance

Substances
Esomeprazole and Zinc
Pair type
Caution
Evidence (highest tier)
Moderate
Source citations
2 sources
Stack Score effect
−5 to your Stack Score (per scored caution row).
Scope
Supplement × Prescription
Last verified
May 30, 2026

Caution · Moderate evidence

Caution

What is happening. Chronic esomeprazole therapy reduces zinc absorption and lowers body zinc stores. In a controlled study, plasma zinc rose 126% with supplementation in controls but only 37% in long-term PPI users, and baseline zinc was about 28% lower in PPI users. Lower zinc can impair immune function and wound healing.

Mechanism. Zinc absorption in the duodenum and jejunum is enhanced by gastric acid, which helps solubilize zinc salts and supports the ZIP4 transporter's function in an acidic luminal environment. PPI-induced hypochlorhydria blunts both processes.

Recommendation. If you take esomeprazole long-term, consider 15-30 mg/day of zinc, ideally as zinc picolinate or zinc bisglycinate which are less acid-dependent. Take zinc on an empty stomach if tolerated, or with food if it causes nausea.

Sources (2)
  1. Farrell CP, Morgan M, Rudolph DS, et al. Proton Pump Inhibitors Interfere With Zinc Absorption and Zinc Body Stores. Gastroenterol Res. 2011;4(6):243-51. PMID 27957023
  2. Freedberg DE, Kim LS, Yang YX. The Risks and Benefits of Long-term Use of Proton Pump Inhibitors: Expert Review and Best Practice Advice From the American Gastroenterological Association. Gastroenterology. 2017;152(4):706-15. PMID 28257716

Stack Score

How this pair moves the number.

Effect on the composite score

If both Esomeprazole and Zinc are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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