Pick up almost any digestive enzyme supplement and the label reads like a small pharmacy: protease, amylase, lipase, lactase, cellulase, and a handful more, all promising to help you "break down food better." Only one of those has ever been through a formal EU health claim assessment. The other seven are doing something — just not what the packaging implies.

The one enzyme claim that's actually regulated

Lactase is the exception. EFSA assessed it specifically and authorised a narrow, dose-specific claim: lactase enzyme "improves lactose digestion in individuals who have difficulty digesting lactose" — but only above a stated threshold, and only taken with each lactose-containing meal.^[1]

That's a specific, testable number. It doesn't apply to protease, amylase, or any of the other enzymes commonly bundled into the same capsule — and it doesn't apply automatically just because "lactase" appears somewhere on the ingredient list at an unstated amount. If lactose intolerance is your actual problem, that figure is what matters, not the length of the ingredient list around it.

The other seven enzymes on the label

Here's the part most product pages skip. If your pancreas works normally, it's already producing protease, amylase, and lipase in quantities that comfortably outpace what a normal meal requires. Supplementing them isn't correcting a deficiency for most people — not in the way lactase supplementation corrects an actual, measurable gap for someone lactose intolerant.

"The mechanism is different, and the marketing usually blurs that line on purpose."

That's not the same as saying the other enzymes do nothing. It means the real case for them isn't a deficiency story. It's a comfort story.

Where the comfort story actually holds up

A randomised, double-blind, placebo-controlled crossover trial tested an 18-enzyme and herbal blend in healthy adults aged 18–45 with regular post-meal bloating but no diagnosed digestive condition. Against placebo, the active product produced 58% less abdominal distension at 30 minutes and 68% less at 90 minutes.^[2] Single use. Short-term. A real result, in a specific population — not evidence that enzymes are "needed," but decent evidence that a good blend can genuinely change how a meal feels.

Peppermint oil, which shows up in a lot of these formulas alongside the enzymes, has its own separate evidence base. A meta-analysis pooling multiple randomised trials found peppermint oil capsules produced significantly greater global symptom improvement and reduced abdominal pain compared with placebo in people with IBS.^[3] It's doing a genuinely different job to the enzymes — relaxing gut muscle rather than breaking down food — which is part of why the two are so often paired.

What to actually check before buying one

• A stated FCC unit count on lactase — not just its presence on the ingredient list — if lactose intolerance is the problem you're solving.
• Whether it's dosed with meals — the EFSA claim only holds when taken alongside the lactose-containing food itself, not on an empty stomach beforehand.
• Whether you're actually after comfort, not correction — if there's no diagnosed intolerance, you're shopping in the bloating-relief category, not the deficiency category, and the evidence bar for each is different.

The Golden Pick

Digestive Enzymes+

8 Enzymes · Live Cultures · Peppermint Oil

£12.95● OUT OF STOCK

View Digestive Enzymes+ →

Ours combines eight enzymes with live cultures and peppermint oil in one capsule — built around exactly that comfort-after-eating case rather than a deficiency claim we can't back. It's out of stock as we write this, but the formula and dosing are worth knowing regardless of when it's back, since the same checklist above applies to whichever blend you're comparing it against on a shelf.

The standard, sized honestly

Becoming the standard here means saying plainly that most people's pancreas doesn't need help, and that the one enzyme claim with real backing is narrow and dose-specific. A heavy meal leaving you uncomfortable is a real, researchable problem. It's just not the same problem as lactose intolerance — and it doesn't need eight enzymes to solve it.

Frequently asked questions

Do digestive enzymes work if you don't have a diagnosed condition?

There's short-term evidence that multi-enzyme blends can reduce post-meal bloating and distension in healthy adults, but this is a comfort effect around specific meals, not correction of an underlying deficiency most people don't have.

How much lactase do you need for lactose intolerance?

EFSA's authorised claim specifies a minimum of 4,500 FCC units, taken with each lactose-containing meal — check the label for this figure specifically rather than assuming any product labelled "digestive enzymes" covers it.

Why is peppermint oil often included in digestive enzyme blends?

Peppermint oil works differently to enzymes — as a gut antispasmodic rather than something that breaks down food — and has separate randomised-trial evidence for easing IBS-type symptoms, which is why the two are often formulated together.

Can you take digestive enzymes every day?

The bloating trial referenced above tested single-use, short-term effects rather than daily long-term use, so it's worth thinking of a blend like this as something you reach for around heavier meals rather than a permanent daily fixture, unless a specific diagnosed condition says otherwise. We've covered the related live-culture side of gut health in more depth in our piece on probiotics vs prebiotics.

Sources

1. EFSA Scientific Opinion — lactase enzyme and lactose digestion claim (ID 1697, 1818): efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2009.1236
2. Randomised, placebo-controlled crossover trial — multi-digestive enzyme and herbal supplement reduces bloating in healthy adults, Nutrition and Dietary Supplements: tandfonline.com/doi/full/10.2147/NDS.S453377
3. Meta-analysis — peppermint oil and IBS symptom/abdominal pain improvement: ncbi.nlm.nih.gov/pmc/articles/PMC6337770

At Oxford Origins, your wellbeing is our priority, and although we pride ourselves on our expertise in nutrition and supplementation, it's important to acknowledge the individuality of each person. Articles published by Oxford Origins are not intended to treat, diagnose, cure or prevent any disease, or replace the advice of your GP. We always recommend consulting with a healthcare provider if you encounter any health concerns, and we'll always be here to support you so you're never alone on your journey.