Pineapple digests you back — it contains an enzyme that dissolves the lining of your mouth
Some trivia is so bizarre it forces you to rethink your entire understanding of the world. Check out the fact below, see how others reacted, and scroll down to dive into the verified science and history behind it.
Bromelain, the protease enzyme in pineapple, breaks down proteins — including the proteins in the soft tissue lining of your mouth, tongue, and lips. This is why eating a lot of pineapple leaves your mouth feeling raw or slightly painful: the pineapple is actively dissolving you. The effect is temporary because your mouth continuously regenerates its epithelial cells. Bromelain is used industrially as a meat tenderiser and is used in medical contexts to treat inflammatory conditions. Cooking or canning pineapple deactivates the enzyme.
Food is something you eat. Finding that one specific food is simultaneously eating you back — running a mild digestive process on your mouth tissue while you consume it — makes the act of eating feel briefly like a negotiation.
The Science Behind It
Bromelain, the protease enzyme in pineapple, breaks down proteins — including the proteins in the soft tissue lining of your mouth, tongue, and lips. This is why eating a lot of pineapple leaves your mouth feeling raw or slightly painful: the pineapple is actively dissolving you. The effect is temporary because your mouth continuously regenerates its epithelial cells. Bromelain is used industrially as a meat tenderiser and is used in medical contexts to treat inflammatory conditions. Cooking or canning pineapple deactivates the enzyme.
Why Your Brain Finds This Hard to Believe
OddlyHuman Editorial
VerifiedWritten and fact-checked by the OddlyHuman Behavioral Science Team. We verify all psychological, sociological, and historical claims against peer-reviewed journals, primary sources, and established encyclopedias to bring you accurate insights.
Read our Editorial Guidelines →“Pineapple contains bromelain — an enzyme that actively dissolves the lining of your mouth while you eat it. That tingling/rawness after pineapple? The pineapple is digesting you back. 🍍 #OddlyHuman”