Because:

1. Apples can improve kidney or gastrointestinal function, expel waste gas in the body and purify blood. It can expel blood stasis, stool and water poison from the body and make the body healthier.

2. Reduce the calorie intake of the human body. The insufficient part needs the accumulated heat supply in the body, and people will naturally become thinner.

3, apple diet can make the stomach contract, after losing weight, the appetite becomes easy to control, the taste becomes normal, and you will not like irritating food or greasy food.

4, apple weight loss can promote the production of white blood cells in the blood, while promoting neurological and endocrine functions.

Apple contains unique fruit acid, which can accelerate metabolism and reduce body fat.

Of course, grapefruit and cucumber can also lose weight, but grapefruit can achieve the purpose of losing weight by increasing satiety, and eating too much cucumber will affect skin color, so apples are generally used to lose weight.