Calories in canned grapefruit: 30 kcal per 100 g

What’s in an 80 g portion

More than half of a portion is water, which is why the calories stay low. What is left is mostly carbohydrate.

0.48 gProtein

5.8 gCarbohydrate

0.32 gFibre

70.9 gWater

2.5 gMinerals and the rest

0.48 gProtein
5.8 gCarbohydrate
0.32 gFibre
70.9 gWater
2.5 gMinerals and the rest

Below average for fruit

Grapefruit is 30 kcal per 100 g. The 143 fruit in this database average 68.8.

Grapefruit30

Fruit average68.8

Protein and fibre in a portion

0.48 g of protein and 0.32 g of fibre, neither at a claim threshold.

Protein, per portion0.48 g

Fibre, per portion0.32 g

Vitamins and minerals in grapefruit

One of the 18 reach the “high in” level: vitamin C.

33 %

Vitamin C

26.4 mg in an 80 g portion

30th of 125 fruit

Vitamin C contributes to the normal function of the immune system, to the reduction of tiredness and fatigue, and to normal collagen formation.

Thiamin (vitamin B1)0.03 mg2.9 %

Potassium57.6 mg2.9 %

Folate0.0048 mg2.4 %

Calcium17.6 mg2.2 %

Niacin (vitamin B3)0.32 mg2 %

Only a trace

Vitamin A
Zinc
Manganese
Selenium

None recorded

Vitamin D
Vitamin B12

Show all 18 with amounts

Vitamin C26.4 mg, 33 %

Thiamin (vitamin B1)0.03 mg, 2.9 %

Potassium57.6 mg, 2.9 %

Folate0.0048 mg, 2.4 %

Calcium17.6 mg, 2.2 %

Niacin (vitamin B3)0.32 mg, 2 %

Phosphorus12.8 mg, 1.8 %

Iron0.24 mg, 1.7 %

Magnesium6.4 mg, 1.7 %

Biotin0.0008 mg, 1.6 %

Pantothenic acid (vitamin B5)0.1 mg, 1.6 %

Vitamin B60.02 mg, 1.1 %

Copper0.01 mg, 0.8 %

Vitamin E0.08 mg, 0.7 %

Riboflavin (vitamin B2)0.01 mg, 0.6 %

Chloride4 mg, 0.5 %

Vitamin Dnone recorded

Vitamin B12none recorded

Badges use the UK legal thresholds per 100 g: 15 % of the reference intake for “source of”, 30 % for “high in”. A trace is shown as “trace” and never counts.

What grapefruit doesn’t give you. And where to find it.

No recorded vitamin D, zinc or selenium.

Vitamin D

0mgin grapefruit

Find it inBloater, grilled500 % per 100 g

Zinc

Tracein grapefruit

Find it inOysters, raw592 % per 100 g

Selenium

Tracein grapefruit

Find it inKidney, pig, fried491 % per 100 g

Immufix Daily Immune Support pouch, orange flavour

100 mgVitamin C, 125 %

0.075 mgSelenium, 136 %

0.00125 mgVitamin D, 25 %

Or one scoop of Immufix

Every 25 g scoop declares 100 mg of vitamin C, 0.00125 mg of vitamin D and 0.075 mg of selenium, alongside other vitamins and minerals. Vitamin C, vitamin D and selenium contribute to the normal function of the immune system.

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Tracked UK delivery

Free standard delivery to UK addresses. Royal Mail 48 tracked, usually 2 to 3 working days.

Made in Cambridgeshire

Made in the UK since 1998, with every nutrient and its declared amount listed on the label.

Grapefruit against other fruit

Per 100 g, grapefruit has the most vitamin C of the 5 here, ahead of melon (Canteloupe-type).

33mg

26mg

12mg

11mg

10mg

Grapefruit, canned in juice, whole contentsthis page

Melon, Canteloupe-type−7 mg

Mulberries, whole fruit, stewed without sugar−21 mg

Pineapple, canned in juice, whole contents−22 mg

Melon, average, weighed whole−23 mg

All values per 100 g, from the same dataset. Differences are against grapefruit.

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Taken every morning since 1998.

Paula Radcliffe has taken the same formula since she was 24. Customers rate Immufix 4.8 out of 5 from 89 reviews.

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Questions about grapefruit

What the numbers say to the questions people actually search.

How many calories are in a portion of grapefruit?

A typical portion (80 g, one of your five a day) gives 24 kcal. Per 100 g the figure is 30 kcal.

Is grapefruit high in vitamin C?

Yes. Grapefruit, canned in juice, whole contents has 33 mg vitamin C per 100 g, 41 % of the NRV, above the 30 % threshold for a “high in” claim.

Which vitamins and minerals does grapefruit have most of?

By share of the daily reference intake: vitamin C (33 mg, 41 %), thiamin (0.04 mg, 3.6 %) and potassium (72 mg, 3.6 %) per 100 g.

Is grapefruit high in salt?

No. Salt is 0.03 g per 100 g, which is very low under UK rules.

How these numbers were made

Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 14-107, Grapefruit, canned in juice, whole contents, 10 analysed samples, published by Public Health England under the Open Government Licence v3.0. Main data references: Reviewed 2013. LGC, Nutritional composition of fruit products, 1985-1986. Values are per 100 g of the edible part; a portion is 80 g, one of your five a day, the usual UK portion for fruit. Reference intakes follow Regulation (EU) 1169/2011 Annex XIII as retained in GB law; “source of”, “high in” and “low” follow Regulation (EC) 1924/2006, assessed per 100 g. Function lines are the authorised wording from the GB register of nutrition and health claims, credited to the nutrient. Energy is rounded to the whole kcal and kJ; other amounts to one decimal, or two below 1. A trace is shown as “trace” and never gets a figure or a badge; a nutrient never analysed is left off the page. We start from the dataset’s 2,887 records and keep 2,322: records weighed with bone, shell or skin, alcoholic drinks, infant foods, brand-named products, records with fewer than eight measured vitamins and minerals and near-identical variants are left out. Group context uses the 143 fruit kept from the dataset; a rank counts only the foods with a measured figure for that nutrient. Food images are illustrations from Ingredient Atlas, released under CC0; they show the food, not the measured sample, and where no illustration of the exact food exists the nearest one is shown (here: Florida Pink Red Grapefruit). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.