Grapefruit
Yes, grapefruit really can help you shed pounds, especially if you are at risk for diabetes.

Researchers at Scripps Clinic in San Diego found that when obese people ate half a grapefruit before each meal, they dropped an average of 3 � pounds over 12 weeks. Drinking grapefruit juice had the same results.

But grapefruit juice doesn't have any proven "fat-burning" properties -- it may just have helped people feel full.

Be careful: You cannot have grapefruit or grapefruit juice if you are on certain medications, so check the label on all your prescriptions, or ask your pharmacist or doctor.