Grapefruit is the tart, refreshing citrus that delivers a generous hit of vitamin C for very few calories, which is why it has long been a breakfast favourite. That nutrient profile is behind its links to immune support, skin health and weight management.
Compounds & anti-nutrients in Grapefruit
Per 100 g, Grapefruit is a notable dietary source of these active compounds. Tap any to see its full sources map and how to work with it.
Why grapefruit is good for you
Grapefruit is an excellent source of vitamin C, the antioxidant the body relies on to build collagen and defend immune cells. Pink and red varieties also contain lycopene, the carotenoid that gives tomatoes their colour, and beta-carotene that the body converts to vitamin A. The slightly bitter edge comes from naringin, a flavonoid studied for its antioxidant properties. Grapefruit’s soluble fibre and high water content add to its filling quality.
To keep more of that fibre, eat the segments whole rather than only drinking the juice, and resist the urge to add sugar to offset the tartness.
Grapefruit nutrition at a glance
The full breakdown is in the label above, but the short version is plenty of vitamin C and antioxidants for almost no calories. The most important caveat has nothing to do with nutrition: grapefruit and its juice can interfere with how the body processes a number of common medicines, including some statins and blood-pressure drugs. If you take regular medication, check with a pharmacist or doctor before making grapefruit a daily habit.
How to choose, store and eat grapefruit
Choose fruit that feels heavy for its size with smooth, firm skin, a sign it is full of juice. A little surface blemishing does not affect the flesh. Grapefruit keeps for a week or so at room temperature, or longer in the fridge. Halve it and loosen the segments with a knife for spooning, or peel and add to salads. It pairs brightly with avocado and works well in a fruit bowl alongside orange.
Common questions
Is grapefruit good for weight loss? It is low in calories, high in water and fibre, and filling before a meal, which can help with appetite. There is nothing uniquely fat-burning about it, though; it helps as part of a balanced, calorie-aware diet rather than on its own.
Why does grapefruit interact with medication? Compounds in grapefruit can block an enzyme that breaks down certain drugs, letting more of the medicine build up than intended. The effect can last many hours, so anyone on affected medicines should ask a pharmacist before eating it regularly.
Explore by health goal
Grapefruit is one of many foods that support these goals:
