Grapefruit gives you a lot of bang for your calorie buck. Half of a medium grapefruit has only 60 calories, and, like watermelon, it’s more than 90 percent water.
Plus, studies have shown that a compound in grapefruit called naringin could lower blood sugar and ultimately lead to weight loss. So enjoy some grapefruit at every opportunity—squeeze it into your water, throw some wedges into your salad, or use it like lemon to flavor your food.
Keep in mind that consuming grapefruit with certain medications could have adverse health effects. If you’re on any meds, check with your doctor before adding grapefruit to your diet.
1/2 of a medium grapefruit: 60 calories, 2g fiber