Pineapple diet refers to eating pineapple as the staple food in one of three meals and not eating other foods for a week.

Advantages: after a week of pineapple diet, you can lose 2 ~ 3 kilograms.

Side effects: Pineapple contains enzymes that decompose protein, which will damage the oral membrane and make the oral cavity sting. Eating only pineapple will lead to unbalanced nutrition.