Find the digestive enzyme that matches your food.

Start with what you want help digesting. We show which enzyme matches it, how strong the evidence is, and what to look for on the label.

What are you trying to digest?

Enzyme: Lactase

The clearest evidence-supported use of an over-the-counter digestive enzyme.

Enzyme: Alpha-galactosidase

May reduce gas from specific fermentable carbohydrates, but results vary.

Enzyme: Multi-enzyme products

Learn how to compare enzyme types, activity units and label quality.

Enzyme: Protease

Commonly marketed for protein digestion, with limited evidence for routine supplementation.

Enzyme activity and getting the right enzyme-to-food match matter more than milligrams on the label or how many enzymes are packed into a blend.

A framework for evaluating any product yourself — enzyme-to-substrate match, activity per dose, source, allergens, and when to see a doctor instead.

What FCC units, ALU, and GalU actually measure, and why two labels with the same milligram count can have very different real activity.

If digestive symptoms are persistent, severe, or come with unexplained weight loss, that's a question for a clinician — not just a supplement choice.

The most-searched use case, and the one where marketing runs furthest ahead of evidence. An honest, cautious summary.

Why this is a medical diagnosis and prescription-treatment territory, not an over-the-counter supplement question — explained plainly.