What causes stomach acid to be low?

Daryl Stubbs C.H.N.C
Daryl Stubbs, C.H.N.C. Reviewed & Fact-Checked

Certified Holistic Nutritional Consultant • View Credentials

Last Updated: June 2026

Low stomach acid can happen from medications, especially PPIs and antacids, infections like H. pylori, autoimmune damage to the stomach lining, aging, and nutrient deficiencies. Poor diet, alcohol, smoking, and chronic digestive problems may also play a role. In some people, the cause is temporary; in others, it reflects an underlying condition that needs medical evaluation.

Disclaimer: This content is reviewed and fact-checked by Daryl Stubbs, Certified Holistic Nutritional Consultant (C.H.N.C), for educational purposes. It does not constitute medical advice or a doctor-patient relationship.

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