Bromelain 250mg by Nature"s Plus 90 Tablet Nature"s Plus Bromelain uses the world"s highest quality all-naturally grown pineapples to derive the world"s highest enzyme activity providing 600 GDU gram (gelatin digesting units). Protein and fat-dissolving activity is just one facet of bromelain"s remarkable properties. Bromelain has also been scientifically proven to have numerous therapeutic effects.