What Are Digestive Enzymes?

Digestive enzymes appear on many supplement labels, usually as a cluster of names ending in "-ase." Understanding what each one acts on makes those lists readable.

What Digestive Enzymes Are

Enzymes are proteins that speed up specific chemical reactions. Digestive enzymes do this for digestion: each type acts on a particular food component, breaking large molecules into smaller ones the body can absorb. Your body produces these enzymes - mainly in the salivary glands, stomach, pancreas and small intestine.

The Common Ones and What They Act On

Two of these are worth a second look. Lactase matters because many adults produce less of it, which is why lactase products exist for people who consume dairy. Cellulase matters because humans do not produce it at all - the enzyme that breaks down cellulose comes from microbes, which is why supplement versions are derived from microbial or fungal fermentation.

Where Supplement Enzymes Come From

Supplement enzymes are typically produced by fermentation using microbes or fungi, then extracted, purified and standardized. Labels often state an activity unit rather than a weight - for example, DU for amylase, FIP or FCC units for others - because enzyme strength is measured by activity, not mass.

Enzymes on Supplement Labels

When you see an enzyme blend on a greens powder or digestive formula:

1. Check the units - activity units (DU, FIP, FCC PU and similar) indicate potency per serving.
2. Check the disclosure - enzymes may each be listed with units, or grouped into a blend with only a total.
3. Note the context - enzymes are sometimes included alongside fibers and probiotics; each category does a different job. See What Are Prebiotics? and Prebiotics vs. Probiotics.

Keeping Education Separate from Product Claims

This article explains what enzymes are, as ingredients. It does not make claims about any product's effectiveness. A few principles hold generally:

• Enzymes are specific: amylase acts on starch, not on fat. An enzyme blend is only as relevant to a given food as its specific components.
• Research on a specific enzyme, at a specific activity level, does not by itself establish what a finished commercial supplement will do.
• People with digestive conditions or on prescribed enzyme therapy should always follow their clinician's guidance rather than substituting over-the-counter products.

The Takeaway

Digestive enzymes are proteins that break down specific food components: amylase for starch, lipase for fat, protease for protein, lactase for lactose and cellulase for plant fiber. Supplement versions are usually fermentation-derived and listed with activity units, which is the number to look for on a label.

If you want to see how these terms look on a real label, the Pro-Active Greens category on MarketPlace Global lists the current formula and ingredient details.