Grapefruit (Citrus x paradisi) is a tropical tree and is a hybrid. It is a hybrid between sweet orange (Citrus sinensis) of Jamaica and pomelo (Citrus maxima) of Indonesia. It was first bred by Captain Shaddock in Jamaica.
Grapefruit is a excellent source phytochemicals, antioxidants and micronutrients. 100g of grapefruit fruit provides nearly 50% of the daily requirement of vitamin C. It is also a good source of pectin fibre.
It contains high amounts of lycopene an antioxidant which gives the pink and red hue to the pulp of the fruit. The seeds have been found to contain high levels of antioxidants.
Its seed extract is claimed to have antibiotic properties. The phytochemical naringin present in grapefruit increases the bioavailability of many of the drugs and medicines.
Nutrient values and weights given below are calculated for edible portion only. Approximately 50% of the fruit is wasted as peel, membranes, seed and core.
Fruit facts: Grapefruit
Fruit facts: Grapefruit minerals
Fruit facts: Vitamins nutrition
|Vitamins nutrition facts||Units||Value
|Vitamin A IU||IU||927||2132||1187|
|Lutein + zeaxanthin||mcg||6||14||8|
|Vitamin E (alpha-tocopherol)||mg||0.13||0.30||0.17|
Fruit facts: Grapefruit lipids nutrition
|Lipids nutrition facts||Units||Value
|Saturated fatty acids||g||0.01||0.03||0.02|
|Monounsaturated fatty acids||g||0.01||0.03||0.02|
|Polyunsaturated fatty acids||g||0.02||0.06||0.03|
Fruit facts: Grapefruit amino acids nutrition
|Amino acids facts||Units||Value per
Source: USDA National Nutrient Database (2009)
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Current topic in Nutrition, Health & Wellness: Grapefruit nutrition facts.