Calories in rhubarb: 7 kcal per 100 g

What’s in an 80 g portion

More than half of a portion is water. The rest is 1.1 g fibre and 0.72 g protein.

0.08 gFat

0.72 gProtein

0.64 gCarbohydrate

1.1 gFibre

75.4 gWater

2.1 gMinerals and the rest

0.08 gFat
0.72 gProtein
0.64 gCarbohydrate
1.1 gFibre
75.4 gWater
2.1 gMinerals and the rest

Below average for fruit

Rhubarb is 7 kcal per 100 g. The 143 fruit in this database average 68.8.

Rhubarb7

Fruit average68.8

Low in sugar, almost no salt

Low sugars and very low salt by UK labelling rules, per 100 g.

Sugars, per portion0.64 g

Salt, per portion0.01 g

Vitamins and minerals in rhubarb

No vitamin or mineral in rhubarb reaches the “source of” level; potassium is the nearest at 14 %.

12 %

Potassium

232 mg in an 80 g portion

33rd of 143 fruit

Potassium is below the 15 % “source of” level in rhubarb, so no function line applies.

Calcium74.4 mg9.3 %

Chloride69.6 mg8.7 %

Manganese0.16 mg8 %

Vitamin C4.8 mg6 %

Copper0.06 mg5.6 %

Only a trace

Selenium

None recorded

Vitamin D
Vitamin B12

Show all 20 with amounts

Potassium232 mg, 12 %

Calcium74.4 mg, 9.3 %

Chloride69.6 mg, 8.7 %

Manganese0.16 mg, 8 %

Vitamin C4.8 mg, 6 %

Copper0.06 mg, 5.6 %

Folate0.0056 mg, 2.8 %

Magnesium10.4 mg, 2.8 %

Thiamin (vitamin B1)0.02 mg, 2.2 %

Niacin (vitamin B3)0.32 mg, 2 %

Phosphorus13.6 mg, 1.9 %

Riboflavin (vitamin B2)0.02 mg, 1.7 %

Iron0.24 mg, 1.7 %

Vitamin E0.16 mg, 1.3 %

Pantothenic acid (vitamin B5)0.07 mg, 1.2 %

Vitamin B60.02 mg, 1.1 %

Vitamin A0.008 mg, 1 %

Zinc0.08 mg, 0.8 %

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 rhubarb doesn’t give you. And where to find it.

No recorded vitamin D or selenium, and only 1 % of the zinc reference intake per 100 g.

Vitamin D

0mgin rhubarb

Find it inBloater, grilled500 % per 100 g

Selenium

Tracein rhubarb

Find it inKidney, pig, fried491 % per 100 g

Zinc

1%in rhubarb, per 100 g

Find it inOysters, raw592 % per 100 g

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

Rhubarb against other fruit

Per 100 g, rhubarb has the most potassium of the 6 here, ahead of loganberries (raw).

290mg

260mg

180mg

164mg

154mg

110mg

Rhubarb, stems only, rawthis page

Loganberries, raw−30 mg

Melon, average−110 mg

Raspberries, raw−126 mg

Blackberries, raw−136 mg

Cherries, West Indian−180 mg

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

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Questions about rhubarb

The questions people ask about rhubarb, answered from the dataset.

How many calories are in a portion of rhubarb?

A typical portion (80 g, one of your five a day) gives 6 kcal. Per 100 g the figure is 7 kcal.

Which vitamins and minerals does rhubarb have most of?

By share of the daily reference intake: potassium (290 mg, 14 %), calcium (93 mg, 12 %) and chloride (87 mg, 11 %) per 100 g.

Is rhubarb a good source of protein?

Rhubarb, stems only, raw has 0.9 g protein per 100 g, 35 % of the energy, which meets the UK threshold for “high protein”.

Is rhubarb high in salt?

No. Salt is 0.01 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 14-252, Rhubarb, stems only, raw, published by Public Health England under the Open Government Licence v3.0. Main data references: LGC, Nutritional composition of fresh fruit, 1985-1986. Vitamin K1 from Bolton-Smith et al, Br.J. Nutr 83, 2000.. 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. Edible proportion: 87 % of the weight as bought is eaten. 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: Rhubarb). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.