Grapefruit is called so because it grows in clusters like grapes. In Latin, grapefruits are called citrus paradisi meaning the citrus from paradise. One of the most popular weight loss diets is the Grapefruit diet. This diet involves drinking of at least three glasses of grape fruit juice everyday, as it helps burn calories. Well known actress Sophia Loren was one of the first celebrities to endorse this diet. The grapefruit looks similar to an orange but is larger in size and belongs to the citrus family of fruits. However, the flesh of the grapefruit is usually red or pink in colour. Grapefruits taste sour and bitter but have a lot of health benefits. Here are some health benefits of grapefruits that you didn't know: Though grapefruits are sour and acidic in taste, they are known to produce an alkaline reaction after digestion. This helps treat acidity which can affect the digestive system. Grapefruit is rich in vitamin C which helps maintain the elasticity of the arteries. It also strengthens them. Pectin, a compound, is known to help reduce the accumulation of arterial deposits. Consuming grapefruit on a regular basis will help you boost your immune system. Grapefruits are highly beneficial for diabetics as they help in bringing down blood sugar levels in the body. Eating grapefruit before bedtime gives good sleep thus, reducing symptoms of insomnia. Pregnant women can reduce water retention in their bodies and swelling in their legs by consuming grapefruit. Grapefruits contain fat-burning enzymes that can promote weightloss. That's because they prevents sugars and starch getting stored in the body. Drinking fresh grapefruit juice can help relieve a sore throat. Grapefruit contains anti-oxidant properties that helps prevent cancer.