Exocrine pancreatic insufficiency (EPI)
We're covering EPI on purpose, and covering it differently than the rest of the site: this page will never carry a product recommendation, a "best supplement" list, or an affiliate link, no matter how our monetization evolves elsewhere on Enzyax.
What EPI is
Exocrine pancreatic insufficiency happens when the pancreas doesn't produce enough digestive enzymes — mainly lipase, protease, and amylase — to properly digest food. According to NIDDK, common causes include chronic pancreatitis, cystic fibrosis, pancreatic cancer or surgery, and other conditions that damage the pancreas. Symptoms can include chronic diarrhea, oily or floating stools, unintentional weight loss, and deficiencies in fat-soluble vitamins.
Why an over-the-counter enzyme supplement is not the answer
EPI is diagnosed medically — typically through a stool elastase test or imaging — and treated with pancreatic enzyme replacement therapy (PERT), a prescription medication dosed by a clinician based on body weight, fat intake, and disease severity. PERT products are regulated drugs, not dietary supplements, and the enzyme activity levels involved are generally far higher than what's found in an OTC digestive enzyme capsule.
This is the reason we draw a hard line on this site: a general digestive enzyme blend marketed for "occasional bloating" is not formulated, dosed, or tested to manage a real enzyme deficiency disease. Treating EPI with an OTC supplement instead of getting diagnosed and properly treated risks ongoing malnutrition and missing the underlying condition causing it.
When to see a doctor instead of buying a supplement
- Chronic greasy, oily, or floating stools
- Unexplained or unintentional weight loss
- A known pancreatic condition, cystic fibrosis, or history of pancreatic surgery
- Digestive symptoms that don't improve with over-the-counter options like lactase or alpha-galactosidase
If any of this sounds familiar, the right next step is a physician or gastroenterologist, not another product page.
Source: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) — Exocrine Pancreatic Insufficiency (EPI). Last reviewed: July 28, 2026.