78 %
Vitamin B12 contributes to normal energy-yielding metabolism, to the normal function of the immune system and to the reduction of tiredness and fatigue.
How many calories are in cooked prawns king?
95.2kcal
in a 140 g fillet
68 kcal per 100 g.
Source: UK CoFID 2021, record 16-389, 11 analysed samples. Checked 5 October 2026.
0.56 gFat
22.7 gProtein
0 gFibre
78 %Daily vitamin B12
What’s in a 140 g fillet
More than half of a fillet is water, which is why the calories stay low. What is left is mostly protein.
- 0.56 gFat
- 22.7 gProtein
- 115 gWater
- 1.4 gMinerals and the rest
Below average for fish and seafood
Prawns king is 68 kcal per 100 g. The 170 fish and seafood in this database average 138.
Prawns king68
Fish and seafood average138
High in salt
1.6 g of salt per 100 g, which is red on a UK traffic-light label (the line is 1.5 g).
Salt, per fillet2.3 g
Sugars, per fillet0 g
Vitamins and minerals in prawns king
Three of the 19 reach the “high in” level, led by vitamin B12.
Only a trace
- Vitamin A
- Vitamin D
- Vitamin C
- Thiamin
Show all 19 with amounts
Chloride1036 mg, 130 %
Vitamin B120.00196 mg, 78 %
Selenium0.042 mg, 76 %
Copper0.32 mg, 32 %
Niacin (vitamin B3)4.9 mg, 31 %
Phosphorus175 mg, 25 %
Vitamin E2.3 mg, 19 %
Zinc1.4 mg, 14 %
Biotin0.00602 mg, 12 %
Iodine0.0168 mg, 11 %
Calcium68.6 mg, 8.6 %
Magnesium29.4 mg, 7.8 %
Folate0.014 mg, 7 %
Riboflavin (vitamin B2)0.07 mg, 5 %
Vitamin B60.07 mg, 5 %
Pantothenic acid (vitamin B5)0.28 mg, 4.7 %
Potassium91 mg, 4.6 %
Iron0.38 mg, 2.7 %
Manganese0.04 mg, 2.1 %
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 prawns king doesn’t give you. And where to find it.
No recorded vitamin D, vitamin C or vitamin A.
Vitamin D
Tracein prawns king
Find it inBloater, grilled500 % per 100 g
Vitamin C
Tracein prawns king
Find it inCherries, West Indian2150 % per 100 g
Vitamin A
Tracein prawns king
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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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.
Prawns king against other fish and seafood
Per 100 g, winkles (boiled) has the most vitamin B12 in this comparison, followed by kippers (boil in the bag, with butter, cooked).
0.036mg
0.0095mg
0.009mg
0.0045mg
0.0014mg
All values per 100 g, from the same dataset. Differences are against prawns king.
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Questions about prawns king
Four questions chosen by the facts above, so every food answers differently.
How many calories are in a portion of prawns king?
A typical portion (140 g, one fillet) gives 95 kcal. Per 100 g the figure is 68 kcal.
Is prawns king high in chloride?
Yes. Prawns, king, purchased cooked has 740 mg chloride per 100 g, 93 % of the NRV, above the 30 % threshold for a “high in” claim.
Does cooking change the sodium in prawns king?
Yes. Per 100 g, sodium goes from 215 mg raw to 643 mg cooked. Part of that is the vitamin or mineral itself changing, part is the change in water content.
Which vitamins and minerals does prawns king have most of?
By share of the daily reference intake: chloride (740 mg, 93 %), vitamin B12 (0.0014 mg, 56 %) and selenium (0.03 mg, 55 %) per 100 g.
How these numbers were made
Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 16-389, Prawns, king, purchased cooked, 11 analysed samples, published by Public Health England under the Open Government Licence v3.0. Main data references: DH, Nutrient analysis of fish and fish products, 2013. Values are per 100 g of the edible part; a fillet is 140 g, one fillet, the usual UK portion for fish and seafood. 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 170 fish and seafood 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: Shrimp). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More fish and seafood
From the same group, with calories per 100 g, and the foods with the most vitamin B12.
More fish and seafood
- Whiting, steamed92 kcal
- Cod, in batter, fried in dripping, takeaway240 kcal
- Haddock, coated in crumbs, frozen, fried196 kcal
- Jackfish, raw108 kcal
- Octopus, raw83 kcal
- Redfish, raw98 kcal
- All 170 fish and seafood