Sorry, but grapefruit doesn't burn fat. There have been a few studies about grapefruit and weight loss. In one, obese people who ate half a grapefruit before meals for 12 weeks lost more weight than those who didn't eat or drink any grapefruit products.

Is grapefruit good for weight loss?

4. It Has Been Shown to Aid Weight Loss. Grapefruit is a weight loss friendly food. It has several properties linked to weight loss, especially its fiber content, which helps promote fullness and reduce calorie intake ( 14 , 15 , 16 , 17 ).

What fruit burns the most fat?