Enzyme
Pepsin
Pepsin is a protein-digesting enzyme made in the stomach. Supplement pepsin is usually obtained from pig stomachs.
What it is studied for
The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.
Every rating with its studiesGrouped by health goal, with the publications behind each rating
Why people take it
Essential Health24.4%
Gut Health22.6%
Detox17.4%
Immune Support15.1%
Energy10.1%
Bone & Joint2.1%
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.