Calories in chocolate: 510 kcal per 100 g

Q: How many calories are in a portion of chocolate?

A typical portion (30 g, a small bag or bar) gives 153 kcal. Per 100 g the figure is 510 kcal.

Q: Is chocolate high in copper?

Yes. Chocolate, plain has 0.71 mg copper per 100 g, 71 % of the NRV, above the 30 % threshold for a “high in” claim.

Q: Which vitamins and minerals does chocolate have most of?

By share of the daily reference intake: copper (0.71 mg, 71 %), manganese (0.63 mg, 32 %) and magnesium (89 mg, 24 %) per 100 g.

Q: Is chocolate high in salt?

No. Salt is 0.02 g per 100 g, which is very low under UK rules.

What’s in a 30 g serving

More than half of a serving is carbohydrate. Sugars make up 18.8 g of that.

8.4 gFat

1.5 gProtein

19.1 gCarbohydrate

0.75 gFibre

0.18 gWater

0.1 gMinerals and the rest

8.4 gFat
1.5 gProtein
19.1 gCarbohydrate
0.75 gFibre
0.18 gWater
0.1 gMinerals and the rest

Above average for sweets and snacks

Chocolate is 510 kcal per 100 g. The 82 sweets and snacks in this database average 354.

Chocolate510

Sweets and snacks average354

High in sugar

62.6 g of sugars per 100 g, which is red on a UK traffic-light label (the line is 22.5 g).

Sugars, per serving18.8 g

Salt, per serving0 g

Vitamins and minerals in chocolate

Two of the 24 recorded reach the “high in” level. Copper leads.

21 %

Copper

0.21 mg in a 30 g serving

2nd of 74 sweets and snacks

Copper contributes to normal energy-yielding metabolism, to the normal function of the immune system and to the protection of cells from oxidative stress.

Manganese0.19 mg9.5 %

Magnesium26.7 mg7.1 %

Phosphorus42 mg6 %

Iron0.69 mg4.9 %

Potassium90 mg4.5 %

None recorded

Vitamin D
Vitamin C
Vitamin B12

Show all 24 with amounts

Copper0.21 mg, 21 %

Manganese0.19 mg, 9.5 %

Magnesium26.7 mg, 7.1 %

Phosphorus42 mg, 6 %

Iron0.69 mg, 4.9 %

Potassium90 mg, 4.5 %

Zinc0.39 mg, 3.9 %

Vitamin E0.43 mg, 3.6 %

Selenium0.0012 mg, 2.2 %

Niacin (vitamin B3)0.33 mg, 2.1 %

Folate0.0036 mg, 1.8 %

Biotin0.0009 mg, 1.8 %

Pantothenic acid (vitamin B5)0.09 mg, 1.5 %

Riboflavin (vitamin B2)0.02 mg, 1.3 %

Calcium9.9 mg, 1.2 %

Thiamin (vitamin B1)0.01 mg, 1.1 %

Vitamin K0.00069 mg, 0.9 %

Vitamin A0.0054 mg, 0.7 %

Vitamin B60.01 mg, 0.6 %

Iodine0.0009 mg, 0.6 %

Chloride2.7 mg, <1 %

Vitamin Dnone recorded

Vitamin Cnone 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”.

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

No recorded vitamin D, vitamin C or vitamin B12.

Vitamin D

0mgin chocolate

Find it inBloater, grilled500 % per 100 g

Vitamin C

0mgin chocolate

Find it inCherries, West Indian2150 % per 100 g

Vitamin B12

0mgin chocolate

Find it inLiver, ox, raw4400 % 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.

Chocolate against other sweets and snacks

Per 100 g, chocolate has the most copper of the 6 here, ahead of chevda/chevra/chewra.

0.7mg

0.3mg

0.2mg

Chocolate, plainthis page

Chevda/chevra/chewra−0 mg

Chocolate spread−0.4 mg

Chocolate, milk−0.4 mg

Sev/ganthia−0.5 mg

Potato crisps, fried−0.5 mg

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

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Taken every morning since 1998.

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Questions about chocolate

What the numbers say to the questions people actually search.

How many calories are in a portion of chocolate?

A typical portion (30 g, a small bag or bar) gives 153 kcal. Per 100 g the figure is 510 kcal.

Is chocolate high in copper?

Yes. Chocolate, plain has 0.71 mg copper per 100 g, 71 % of the NRV, above the 30 % threshold for a “high in” claim.

Which vitamins and minerals does chocolate have most of?

By share of the daily reference intake: copper (0.71 mg, 71 %), manganese (0.63 mg, 32 %) and magnesium (89 mg, 24 %) per 100 g.

Is chocolate high in salt?

No. Salt is 0.02 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 17-491, Chocolate, plain, published by Public Health England under the Open Government Licence v3.0. Main data references: Reviewed 2013. LGC, Nutritional analysis of foods for pre-school children, 1992; and Fatty Acid Supplement, 1998; selenium from 'Analysis of foods for Selenium' 1994. Vitamin K1 from Bolton-Smith et al, Br.J. Nutr 83, 2000. Values are per 100 g of the edible part; a serving is 30 g, a small bag or bar, the usual UK portion for sweets and snacks. 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 82 sweets and snacks 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: Dark Chocolate). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.