Certain medications do not mix with grapefruit, so do check it out.If you are not taking any contra-indicated pills, grapefruit is a magnificent way to start your day! Half a grapefruit gives you your daily supply of Vitamin C. Check out pink grapefruits, too, which are sweeter. This fruit is an excellent source of potassium and bioflavanoids. These are important for your heart and circulation. The soluble fibre pectin helps with the elimination of cholesterol. Pink grapefruit gives you antioxidant caratenoids which helps to protect you from heart disease and cancer. Vitamin A, which is great for the skin, the mucous membranes and the immune system is derived from the betacarotene in grapefruits. All round good fruit!