The glycemic index refers to the rising level of blood sugar 2 hours after ingesting food containing 50g carbohydrate, which reflects the speed and ability of a certain food to raise blood sugar relative to glucose. As a reference, we can know whether food will affect blood sugar after entering the intestine. According to the book Food Composition in China, per 100g grapefruit contains 9.62g of carbohydrate, 0.04g of fat, 0.76g of protein and 65438 of cellulose.

However, foods with low GI are very easy to feel full, and at the same time, the level of insulin is low, and insulin can promote the synthesis of glycogen, fat and protein. Therefore, eating low GI food can generally help the body burn fat, reduce fat storage and achieve the effect of slimming, which is suitable for people who lose weight.

2

Does grapefruit raise blood sugar or lower blood sugar?

There is no direct effect of raising blood sugar or lowering blood sugar.

Eating any food will affect blood sugar. It can only be said that it has a high or low effect on blood sugar, but it has no direct effect on raising or lowering blood sugar. As far as grapefruit is concerned, its glycemic index is low, it is rich in dietary fiber, and it has a strong sense of fullness, which is conducive to maintaining blood sugar in a relatively stable range and has little effect on blood sugar, but it cannot be used as a hypoglycemic drug.

In addition, it is best to eat grapefruit directly, and don't squeeze juice, otherwise the method of squeezing juice will consume the nutrients in the fruit, and dietary fiber will be discarded as waste residue. The sugar content of concentrated grapefruit juice will increase, and the juice will be easier to digest and absorb, but the blood sugar will easily rise after a glass of juice, which will affect health and weight loss.