8.3 %
Niacin contributes to normal energy-yielding metabolism, to normal psychological function and to the reduction of tiredness and fatigue.
How many calories are in white bread?
82.1kcal
in a 36 g slice
228 kcal per 100 g.
Source: UK CoFID 2021, record 11-976, 8 analysed samples. Checked 5 October 2026.
0.97 gFat
3.3 gProtein
1.1 gFibre
8.3 %Daily niacin
What’s in a 36 g slice
About a third of a slice is carbohydrate. Sugars make up 1.1 g of that.
- 0.97 gFat
- 3.3 gProtein
- 16 gCarbohydrate
- 1.1 gFibre
- 13.5 gWater
- 1.1 gMinerals and the rest
Below average for bread and rolls
White bread is 228 kcal per 100 g. The 43 bread and rolls in this database average 273.
White bread228
Bread and rolls average273
Low in sugar
3 g of sugars per 100 g; the UK “low sugars” line is 5 g.
Sugars, per slice1.1 g
Salt, per slice0.36 g
Vitamins and minerals in white bread
One of the 19 recorded reach the “high in” level. Niacin leads.
Show all 19 with amounts
Chloride256 mg, 32 %
Niacin (vitamin B3)1.3 mg, 8.3 %
Thiamin (vitamin B1)0.09 mg, 8.2 %
Folate0.0158 mg, 7.9 %
Manganese0.15 mg, 7.6 %
Selenium0.00396 mg, 7.2 %
Calcium46.8 mg, 5.9 %
Copper0.05 mg, 5 %
Phosphorus33.5 mg, 4.8 %
Iron0.61 mg, 4.4 %
Zinc0.22 mg, 2.2 %
Magnesium7.6 mg, 2 %
Potassium39.6 mg, 2 %
Riboflavin (vitamin B2)0.03 mg, 1.8 %
Vitamin B60.03 mg, 1.8 %
Vitamin Anone recorded
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”. A trace is shown as “trace” and never counts.
What white bread doesn’t give you. And where to find it.
No recorded vitamin D, vitamin C or vitamin A.
Vitamin D
0mgin white bread
Find it inBloater, grilled500 % per 100 g
Vitamin C
0mgin white bread
Find it inCherries, West Indian2150 % per 100 g
Vitamin A
0mgin white bread
Find it inLiver, calf, fried3152 % per 100 g
100 mgVitamin C, 125 %
0.075 mgSelenium, 136 %
0.00125 mgVitamin D, 25 %
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Made in Cambridgeshire
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White bread against other bread and rolls
Per 100 g, bread rolls (wholemeal) has the most niacin in this comparison, followed by bread (wholemeal, average).
6.6mg
6.2mg
6.1mg
3.9mg
3.7mg
3mg
Bread rolls, wholemeal+2.9 mg
Bread, wholemeal, average+2.5 mg
Bread, wheatgerm+2.4 mg
Paratha+0.2 mg
Bread, white, Danish stylethis page
Chapatis, made without fat−0.7 mg
All values per 100 g, from the same dataset. Differences are against white bread.
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Questions about white bread
Four questions chosen by the facts above, so every food answers differently.
How many calories are in a portion of white bread?
A typical portion (36 g, one medium slice) gives 82 kcal. Per 100 g the figure is 228 kcal.
Is white bread high in chloride?
Yes. Bread, white, Danish style has 710 mg chloride per 100 g, 89 % of the NRV, above the 30 % threshold for a “high in” claim.
Which vitamins and minerals does white bread have most of?
By share of the daily reference intake: chloride (710 mg, 89 %), niacin (3.7 mg, 23 %) and thiamin (0.25 mg, 23 %) per 100 g.
Is white bread a good source of protein?
Bread, white, Danish style has 9.1 g protein per 100 g, 16 % of the energy, which meets the UK threshold for “source of protein”.
How these numbers were made
Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 11-976, Bread, white, Danish style, 8 analysed samples, published by Public Health England under the Open Government Licence v3.0. Main data references: LGC, Nutrient analysis of bread and morning goods, 1999; Cereals and Cereal Products Supplement (1988); and industry data, 2013. Fats estimated from white bread.. Values are per 100 g of the edible part; a slice is 36 g, one medium slice, the usual UK portion for bread and rolls. 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 43 bread and rolls 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: White Bread). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More bread and rolls
From the same group, with calories per 100 g, and the foods with the most niacin.
More bread and rolls
- Bread rolls, brown, soft236 kcal
- Bread, brown, toasted266 kcal
- Bread, naan, retail285 kcal
- Bread, white, 'with added fibre', toasted266 kcal
- Chapatis, retail328 kcal
- Papadums, takeaway501 kcal
- All 43 bread and rolls