There’s a popular, but misleading, food rumor that eating grapefruit burns more calories than it contains. “It’s a myth that grapefruit is a negative calorie food; No food is,” says Taub-Dix. “But, high-in-fiber, low-in-calories, and flavorful still makes it a good addition to a weight loss plan,” Taub-Dix says.
While she promises there’s no wrong time to scarf down the ruby fruit, according to one study published in the Journal of Medicinal Food, eating half a grapefruit before meals may be most beneficial for weight and fat loss. For the six-week study, researchers found that participants who ate grapefruit before every meal saw their belly’s shrink by up to an inch. Why not consider having half of a grapefruit before your morning oatmeal, and slicing a few segments to a starter salad?