What is the source of bromelain?

Bromelain is an enzyme primarily found in pineapples, specifically in the stem and fruit of the plant. This proteolytic enzyme is known for its ability to break down proteins, which makes it useful in various applications, including digestive aid, reducing inflammation, and as a natural meat tenderizer.

The other options presented do not contain significant amounts of bromelain. Coconut, mango, and avocado are all nutritious and beneficial fruits, but they do not have bromelain as a component. This distinguishes pineapple as the correct source of bromelain, highlighting its unique biochemical properties and practical uses in esthetics and health.