If you've ever eaten fresh pineapple, you might have noticed that strange, tingling sensation in your mouth. It’s almost like the pineapple is trying to ‘eat you back’ – and it’s all thanks to an enzyme called bromelain.

Bromelain is a protein-digesting enzyme found in the fruit, and it’s actually the key reason why pineapples feel like they’re nibbling at you. As you munch on a juicy slice, bromelain goes to work, breaking down the proteins in the fruit and in your mouth. This includes the delicate proteins that make up the cells in your tongue and the roof of your mouth, which causes that mild burning or tingling sensation.

But don’t be alarmed – it’s totally harmless! In fact, bromelain’s main job is to help break down the tough fibers of the pineapple itself, making the fruit easier to digest. It’s like a little biochemical gift to your digestive system, even though it might feel a bit intense at first.

This enzyme is also why pineapple is often used in marinades and tenderizing meat – bromelain is a natural meat tenderizer! So, while it might feel like the pineapple is turning the tables on you, it’s just doing what it does best: breaking down proteins and making your snack even more delicious.

Next time you indulge in a fresh pineapple, just remember, it’s not you – it’s the pineapple trying to "eat you back"!