The Grapefruit Diet

grapefruitAlso known as the Hollywood Diet, the Grapefruit Diet is an 18-day diet that claims to lose weight. It dates back as far as the 1930s. The diet basically calls for the user to eat half a grapefruit, or a serving of grapefruit juice, with each meal everyday.

The eating plan also involves (although not required) drinking lot of black coffee, eating protein especially hard-boiled eggs, and an odd piece of dry toast.

Benefits of grapefruit

The fruit is an excellent source of nutrients and phytochemicals that are needed for a healthy diet. Grapefruit is a good source of vitamin C, pectin fiber, and lycopene.

Studies have shown grapefruit helps lower cholesterol, and even its seeds have low levels of antioxidant properties. Extract from its seeds has been claimed to be a strong antimicrobial against bacteria and fungi.

How the diet work?

It is theorized that the grapefruit’s low glycemic index is able to help the body’s metabolism burn fat. Grapefruit reduces insulin and affects blood sugar regulation.

This was evident during a 12-week experiment as participants who ate half a grapefruit with every meal lost an average of 3.6 pounds. Since grapefruit regulates blood sugar levels and fat metabolism, it even might help reduce the risk of diabetes or stroke.

Risks of grapefruit diet

A 2007 study concluded that regular consumption of grapefruits increases the risk of breast cancer in post-menopausal women. This is because the fruit inhibits the CYP3A4 enzyme, which metabolizes estrogen.

Also, grapefruit juice can interact with a number of medications and potentially cause serious side effects, since it inhibits an enzyme in the intestines that’s responsible for the natural breakdown and absorption of many medications.