The grapefruit is a subtropical citrus tree, which many people think of it as sour. But it is not. Actually it is sweet and delicious. The Grapefruit Diet, has been around a long time and surprisingly has survived the test of time.

Grapefruit is a very nutritious low-calorie fruit (66-84 calories per serving), loaded with vitamin C and fiber, it is not a magical fat burner. The low glycemic index, high fiber, and low calorie nature of the fruit may reduce insulin levels and help dieters feel full and eat fewer calories.

Researchers from the University of Western Ontario found that the flavonoid naringenin, which occurs naturally in grapefruit, might perform a role similar to the sugar-regulating hormone insulin. The laboratory experiment found that naringenin appeared to stop the liver from secreting very low-density lipoproteins, thereby lowering the levels of certain triglycerides in the blood.

In theory, this means that naringenin might be able to compensate for the effects of insulin resistance, a characteristic of both metabolic syndrome and Type 2 diabetes. Naringenin can also corrected the elevations in triglyceride and cholesterol, prevented the development of insulin resistance and completely normalized glucose metabolism.

As I said earlier, that many people think grapefruit has a bitter or sour taste. Maybe this is a problem that causes us not want to eat it. But if you peel the grapefruit as you would an orange, the problem will be solved. Grapefruit usually peels quite easily. Take off a slice as you would an orange and enjoy.