26 %
Potassium contributes to normal functioning of the nervous system and to normal muscle function.
How many calories are in prune juice?
143kcal
in a 250 g glass
57 kcal per 100 g.
Source: UK CoFID 2021, record 14-289. Checked 5 October 2026.
0.25 gFat
1.3 gProtein
36 gCarbohydrate
26 %Daily potassium
What’s in a 250 g glass
More than half of a glass is water. The rest is 36 g carbohydrate and 1.3 g protein.
- 0.25 gFat
- 1.3 gProtein
- 36 gCarbohydrate
- 199 gWater
- 13.3 gMinerals and the rest
Below average for drinks
Prune juice is 57 kcal per 100 g. The 61 drinks in this database average 69.2.
Prune juice57
Drinks average69.2
Low in fat
0.1 g of fat per 100 g; the UK “low fat” line is 1.5 g.
Fat, per glass0.25 g
Vitamins and minerals in prune juice
Nothing reaches the “high in” level, but two of the 16 count as a source, led by potassium.
Only a trace
- Vitamin C
- Folate
- Selenium
- Fibre
None recorded
- Vitamin D
- Vitamin B12
Show all 16 with amounts
Potassium525 mg, 26 %
Vitamin B60.35 mg, 25 %
Iron1.8 mg, 13 %
Manganese0.25 mg, 13 %
Niacin (vitamin B3)1.8 mg, 11 %
Copper0.1 mg, 10 %
Riboflavin (vitamin B2)0.13 mg, 8.9 %
Magnesium27.5 mg, 7.3 %
Phosphorus47.5 mg, 6.8 %
Zinc0.5 mg, 5 %
Iodine0.0075 mg, 5 %
Calcium35 mg, 4.4 %
Thiamin (vitamin B1)0.03 mg, 2.3 %
Chloride12.5 mg, 1.6 %
Vitamin Dnone recorded
Vitamin B12none recorded
Badges use the UK legal thresholds per 100 g: 7.5 % of the reference intake for “source of”, 15 % for “high in”. A trace is shown as “trace” and never counts.
What prune juice doesn’t give you. And where to find it.
No recorded vitamin D, vitamin C or selenium.
Vitamin D
0mgin prune juice
Find it inBloater, grilled500 % per 100 g
Vitamin C
Tracein prune juice
Find it inCherries, West Indian2150 % per 100 g
Selenium
Tracein prune juice
Find it inKidney, pig, fried491 % per 100 g
100 mgVitamin C, 125 %
0.075 mgSelenium, 136 %
0.00125 mgVitamin D, 25 %
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Made in Cambridgeshire
Made in the UK since 1998, with every nutrient and its declared amount listed on the label.
Prune juice against other drinks
Prune juice comes second for potassium here, just behind tomato juice.
230mg
210mg
200mg
123mg
110mg
92mg
All values per 100 g, from the same dataset. Differences are against prune juice.
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Questions about prune juice
What the numbers say to the questions people actually search.
How many calories are in a portion of prune juice?
A typical portion (250 ml, a glass) gives 143 kcal. Per 100 g the figure is 57 kcal.
Is prune juice a source of potassium?
It is a source of potassium: 210 mg per 100 g, 11 % of the NRV, which passes the 7.5 % threshold for “source of” but not the 15 % needed for “high in”.
Which vitamins and minerals does prune juice have most of?
By share of the daily reference intake: potassium (210 mg, 11 %), vitamin B6 (0.14 mg, 10 %) and iron (0.7 mg, 5 %) per 100 g.
Is prune juice 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 14-289, Prune juice, published by Public Health England under the Open Government Licence v3.0. Main data references: LGC, Fruit and vegetables, 1989-1990. Values are per 100 g of the edible part; a glass is 250 g, a glass, the usual UK portion for drinks. 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 (per 100 ml thresholds for drinks). 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 61 drinks 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: Plum). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More drinks
From the same group, with calories per 100 g, and the foods with the most potassium.
