Grapefruit also helps you to lose belly fat. It contains an antioxidant named naringenin which helps to balance insulin levels in the body. It is very low in calories and highly rich in vitamin a and c. Thus it is a very nutritious fruit too. It will help you to lower your cholesterol level and keep your heart healthy. It is a fruit that you can include in your daily diet regime to fasten the process of weight loss. It has high water content which will help you to cleanse from inside and lose belly fat. It also contains some really good fat cutting enzymes.