Grapefruit's somewhat bitter taste is full of antioxidants and fibre, making it one of the healthiest citrus fruits we can eat. It's rich in vitamin A and C, plus smallish concentrations of various beneficial minerals. Several reports are emerging that suggest that it might help in preventing cells from becoming insulin resistant, therefore preventing type 2 diabetes.

A rich source of: vitamin A, vitamin C.

Grapefruit, raw

Serving Size grams 120
Teaspoons of table sugar equivalent 1
Glycemic Index 25
Glycemic Load 2.8
Potential GI Range 25

Grapefruit juice, unsweetened

Serving Size grams 250
Teaspoons of table sugar equivalent 3.5
Glycemic Index 48
Glycemic Load 9.6
Potential GI Range 48