81 %
Niacin contributes to normal energy-yielding metabolism, to normal psychological function and to the reduction of tiredness and fatigue.
How many calories are in roasted pork belly joint?
293kcal
in a 100 g portion
293 kcal per 100 g.
Source: UK CoFID 2021, record 18-555, 10 analysed samples. Checked 5 October 2026.
21.4 gFat
25.1 gProtein
0 gFibre
81 %Daily niacin
What’s in a 100 g portion
More than half of a portion is water. The rest is 25.1 g protein and 21.4 g fat.
- 21.4 gFat
- 25.1 gProtein
- 55.8 gWater
Above average for meat
Pork belly joint is 293 kcal per 100 g. The 253 meat in this database average 241.
Pork belly joint293
Meat average241
Low in sugar and salt
Low sugars and low salt by UK labelling rules, per 100 g.
Sugars, per portion0 g
Salt, per portion0.23 g
Vitamins and minerals in pork belly joint
Two of the 20 recorded reach the “high in” level. Niacin leads.
A source of
Only a trace
- Vitamin A
- Manganese
None recorded
- Vitamin C
Show all 20 with amounts
Niacin (vitamin B3)12.9 mg, 81 %
Thiamin (vitamin B1)0.47 mg, 43 %
Selenium0.015 mg, 27 %
Phosphorus190 mg, 27 %
Zinc2.5 mg, 25 %
Pantothenic acid (vitamin B5)1.4 mg, 24 %
Vitamin B60.3 mg, 21 %
Vitamin D0.001 mg, 20 %
Vitamin B120.0005 mg, 20 %
Potassium310 mg, 16 %
Riboflavin (vitamin B2)0.19 mg, 14 %
Chloride93 mg, 12 %
Biotin0.004 mg, 8 %
Copper0.06 mg, 6 %
Magnesium20 mg, 5.3 %
Iron0.7 mg, 5 %
Vitamin E0.31 mg, 2.6 %
Folate0.003 mg, 1.5 %
Calcium9 mg, 1.1 %
Vitamin Cnone 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 pork belly joint doesn’t give you. And where to find it.
No recorded vitamin C or vitamin A, and only 1.5 % of the folate reference intake per 100 g.
Vitamin C
0mgin pork belly joint
Find it inCherries, West Indian2150 % per 100 g
Vitamin A
Tracein pork belly joint
Find it inLiver, calf, fried3152 % per 100 g
Folate
1.5%in pork belly joint, per 100 g
Find it inLiver, chicken, fried675 % per 100 g
100 mgVitamin C, 125 %
0.075 mgSelenium, 136 %
0.00125 mgVitamin D, 25 %
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Pork belly joint against other meat
Per 100 g, pork belly joint has the most niacin of the 6 here, ahead of beef (fillet steak, from steakhouse, lean and fat).
12.9mg
12.5mg
11.6mg
7mg
7mg
4.3mg
Pork, belly joint, roasted, lean and fatthis page
Bacon rashers, middle, fried−1.3 mg
Steak and kidney pudding−8.6 mg
All values per 100 g, from the same dataset. Differences are against pork belly joint.
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Questions about pork belly joint
Four questions chosen by the facts above, so every food answers differently.
How many calories are in a portion of pork belly joint?
A typical portion (100 g cooked) gives 293 kcal. Per 100 g the figure is 293 kcal.
Is pork belly joint high in niacin?
Yes. Pork, belly joint, roasted, lean and fat has 12.9 mg niacin per 100 g, 81 % of the NRV, above the 30 % threshold for a “high in” claim.
Which vitamins and minerals does pork belly joint have most of?
By share of the daily reference intake: niacin (12.9 mg, 81 %), thiamin (0.47 mg, 43 %) and selenium (0.015 mg, 27 %) per 100 g.
Is pork belly joint a good source of protein?
Pork, belly joint, roasted, lean and fat has 25.1 g protein per 100 g, 34 % of the energy, which meets the UK threshold for “high protein”.
How these numbers were made
Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 18-555, Pork, belly joint, roasted, lean and fat, 10 analysed samples, published by Public Health England under the Open Government Licence v3.0. Main data references: LGC, Nutrient analysis of retail cuts of pork, 1992-1993. Values are per 100 g of the edible part; a portion is 100 g, 100 g cooked, the usual UK portion for meat. 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 253 meat 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: Pork Belly). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More meat
From the same group, with calories per 100 g, and the foods with the most niacin.
