Certification status
Informed Sport
BIOptimizers Masszymes
A full-spectrum digestive enzyme capsule with an unusually high protease (protein-digesting) content, plus enzymes for fats, starches and fibre. BIOptimizers makes it 100% plant-based and vegan. Informed Sport certified — uncommon for a digestive enzyme — so each batch is screened against the banned-substances list. £25 at Amazon UK, with 2,100 reviews at 4.4/5.
Buy in the UK
- Paid linkView price at Amazon UK
We may earn a commission if you buy through links on this page.
Why this certification matters
- Informed Sport
- Informed Sport certification is especially relevant for athletes in tested sports because products are batch-tested for substances prohibited in sport.
Frequently asked questions
- What enzymes does it contain?
- A full spectrum of digestive enzymes — with a notably high protease (protein-digesting) content, plus enzymes that break down fats, starches, fibre and sugars. BIOptimizers positions the high protease as the product's distinguishing feature.
- Is it vegan?
- Yes — MassZymes is 100% plant-based and vegan, in vegetarian capsules, with no dairy, soy or fillers.
- How do I take it?
- The brand suggests three capsules with meals, or as directed by a practitioner. Check the label for the exact serving and capsule count of the pack you buy.
- Is it certified for banned substances?
- Yes — Informed Sport, with each batch screened against the WADA banned list. That's rare for a digestive-enzyme product and useful for tested athletes.
- Do digestive enzyme supplements work?
- They can help people with specific enzyme insufficiencies, and some take them to reduce bloating after large or protein-heavy meals. Evidence for routine use in healthy people is limited — they aren't essential for everyone.
