Grapefruit: Calories in Grapefruit

Whether deep red, pink or white, grapefruit is a healthy citrus fruit loaded with nutrients but low in calories. Due to its delicious taste and health benefits, grapefruit is one of the most favorite fruit amongst the rest. Know more about grapefruit calories and nutritional benefits with this article.

Categorized as white (blond), pink or ruby red, grapefruit is a large citrus fruit similar to orange, lemon and pomelo. It is categorized as white (blond), pink or ruby, which doesn't reflect its skin color but describes the color of its flesh. Grapefruit was discovered in Barbados in the 18th century as a result of natural cross breed between the orange and the pomelo. Tart and tangy with an underlying sweetness, grapefruit has a succulency of an orange and similar health promoting benefits. Though available all over the year, grapefruit is in season and at its best from winter through early spring. Also termed as citrus paradisi in Latin, it varies in diameter from four to six inches, with some varieties having seeds while others without seeds.

Calories in a Grapefruit

Grapefruit comes in different colors like vibrant pink, deep red and even white, and depending upon where they are grown, grapefruit calories do vary.

Grapefruit	Calories
California Pink or Red Grapefruit	46 calories
Arizona Pink or Red Grapefruit	46 calories
Florida Pink or Red Grapefruit	37 calories
California White Grapefruit	44 calories
Florida White Grapefruit	38 calories

Calories and Nutritional Value of Grapefruit

½ Large Grapefruit (166 g): 53 calories

Nutrient Values of Grapefruit
Total Fat	0.2 g
Total Carbohydrates	13.4 g
Dietary Fiber	1.8 g
Sugars	11.6 g
Protein	1.0 g
Vitamin A	31 %
Vitamin C	95 %

½ Medium Grapefruit (128 g): 41 calories

Nutrient Values of Grapefruit
Total Fat	0.1 g
Total Carbohydrates	10.3 g
Dietary Fiber	1.4 g
Sugars	8.9 g
Protein	0.8 g
Vitamin A	24 %
Vitamin C	73 %

½ Small Grapefruit (100 g): 32 calories

Nutrient Values of Grapefruit
Total Fat	0.1 g
Total Carbohydrates	8.1 g
Dietary Fiber	1.1 g
Sugars	7.0 g
Protein	0.6 g
Vitamin A	19 %
Vitamin C	57 %

Health Benefits of Grapefruit

Being an excellent source of vitamin C, it supports the immune system by reducing cold symptoms or severity of cold symptoms. It prevents the free radical damage and also minimizes the severity of inflammatory conditions, like asthma, heart attack, stroke, osteoarthritis, and rheumatoid arthritis.
Red or pink color grapefruit contains lycopene, a carotenoil phytonutrient which has anti-tumor properties that help fighting oxygen free radicals, compounds that damage the body cells.
Phytonutrients in grapefruit called limonoids inhibit tumor formation by elevating the formation of glutathione-S-transferase, a detoxifying enzyme. This enzyme ignites a reaction in the liver that helps to make toxic compounds more water soluble for excretion from the body. Pulp of the fruit contains glucarates, compounds that help fighting cancers of the mouth, lung, breast, stomach, skin and colon.
Grapefruit comprises pectin, a form of soluble fiber that reduces the blood levels of LDL ('bad') cholesterol and triglycerides without affecting the HDL ('good') cholesterol.
Drinking ½ to 1 liter of grapefruit daily, increases urinary pH value and citric acid excretion which reduce the risks of calcium oxalate kidney stones.
It significantly increases the production and activity of liver detoxification enzymes which are responsible for removing toxic compounds and cancer causing toxins from the body.
Naringenin, a flavonoid concentrated in grapefruit helps in repairing the damaged DNA in human prostate cancer cells and also eradicates potentially cancer-causing mutations in cells.

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