1, because there is a naringin limonin in grapefruit peel, which will be bitter when cooked. Grapefruit contains potassium, a natural trace element necessary for patients with hypertension, and almost contains no sodium. It is the best diet fruit for patients with cardiovascular and cerebrovascular diseases and kidney diseases.

2. Modern medical research has found that grapefruit meat is rich in vitamin C and insulin-like components, so it has the effects of lowering blood sugar, reducing blood fat, losing weight and beauty beauty. If eaten regularly, it has an auxiliary therapeutic effect on diseases such as diabetes and arteriosclerosis, and has the effect of strengthening the body and caring skin for obese people.