It is great for your digestive system. If you know what I mean. Just remember " Candy is dandy but fruit helps you poop. "

Grapefruit juice is, like any citrus juice, high in vitamin C. That's about it. It does NOT have any magic properties as far as weight loss, although there are a lot of gullible people out there who think it does.

Oh for God's sake! If you want to lose weight eat less and exercise.

Grapefruit is an excellent source of vitamin C, a vitamin that helps to support the immune system. Vitamin C-rich foods like grapefruit may help reduce cold symptoms or severity of cold symptoms over 20 scientific studies have suggested that vitamin C is a cold-fighter. Vitamin C also prevents the free radical damage that triggers the inflammatory cascade, and is therefore also associated with reduced severity of inflammatory conditions, such as asthma, osteoarthritis, and rheumatoid arthritis. As free radicals can oxidize cholesterol and lead to plaques that may rupture causing heart attacks or stroke, vitamin C is beneficial to promoting cardiovascular health. Owing to the multitude of vitamin C's health benefits, it is not surprising that research has shown that consumption of vegetables and fruits high in this nutrient is associated with a reduced risk of death from all causes including heart disease, stroke and cancer.

Anyone knows when your on a diet you are punishing yourself for past "food" sins. So you must suffer through grapefruits and other disgusting tortures of the tongue. In short there is really no evidence that it has anything to do with weight lose.

It will increase your weight.Don't drink.