How much body fat can a single grapefruit burn?
food doesn't burn body fat. exercise does. you can't just eat healthy and then sit around all day. that isn't how it works.
A single grapefruit can burn at least 95 calories. One cup of grapefruit juice contains 96 calories. If you are keen on loosing some body fat, it is recommended that you reduce your daily calorie intake by 500 in order to lose 1 lb. per week.