The natural ingredient which gives grapefruit its bitter taste may be able to used to create a diet pill, a study has indicated.
Naringenin, a flavonoid found in citrus fruit including grapefruit, has a affects the liver making it selectively burn fat instead of storing it after a meal. This could mean that without having to change diets or cut out particular foods, a dose of naringenin could prevent weight gain and even help to lose it.