182 %
Niacin contributes to normal energy-yielding metabolism, to normal psychological function and to the reduction of tiredness and fatigue.
How many calories are in fajita?
375kcal
in a 300 g serving
125 kcal per 100 g.
Source: UK CoFID 2021, record 19-464. Checked 5 October 2026.
18.9 gFat
50.4 gProtein
2.4 gFibre
182 %Daily niacin
What’s in a 300 g serving
More than half of a serving is water. The rest is 50.4 g protein and 18.9 g fat.
- 18.9 gFat
- 50.4 gProtein
- 0.9 gCarbohydrate
- 2.4 gFibre
- 218 gWater
- 9.6 gMinerals and the rest
Below average for dishes
Fajita is 125 kcal per 100 g. The 603 dishes in this database average 180.
Fajita125
Dishes average180
High in protein
Protein supplies 53 % of the calories; the UK “high protein” line is 20 %.
Protein, per serving50.4 g
Fat, per serving18.9 g
Vitamins and minerals in fajita
Two of the 20 recorded reach the “high in” level. Niacin leads.
A source of
Only a trace
- Copper
- Manganese
Show all 20 with amounts
Niacin (vitamin B3)29.1 mg, 182 %
Chloride1440 mg, 180 %
Phosphorus528 mg, 75 %
Iron8.6 mg, 61 %
Vitamin B60.81 mg, 58 %
Selenium0.03 mg, 55 %
Vitamin E5.7 mg, 48 %
Potassium948 mg, 47 %
Pantothenic acid (vitamin B5)2.7 mg, 45 %
Iodine0.054 mg, 36 %
Vitamin C21 mg, 26 %
Vitamin B120.0006 mg, 24 %
Riboflavin (vitamin B2)0.3 mg, 21 %
Magnesium75 mg, 20 %
Thiamin (vitamin B1)0.21 mg, 19 %
Vitamin D0.0009 mg, 18 %
Zinc1.8 mg, 18 %
Calcium111 mg, 14 %
Vitamin A0.093 mg, 12 %
Biotin0.0039 mg, 7.8 %
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 fajita doesn’t give you. And where to find it.
No recorded copper, and only 2.6 % of the biotin reference intake and 3.9 % of the vitamin A reference intake per 100 g.
Copper
Tracein fajita
Find it inLiver, calf, fried2386 % per 100 g
Biotin
2.6%in fajita, per 100 g
Find it inLiver, chicken, fried432 % per 100 g
Vitamin A
3.9%in fajita, per 100 g
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
Made in the UK since 1998, with every nutrient and its declared amount listed on the label.
Fajita against other dishes
Per 100 g, fajita has the most niacin of the 6 here, ahead of sandwich (white bread, tuna mayonnaise).
9.7mg
7.3mg
5.7mg
3.4mg
3.1mg
3mg
Fajita, chicken, meat only, takeaway and restaurantthis page
Pork pie, individual−6.3 mg
All values per 100 g, from the same dataset. Differences are against fajita.
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Questions about fajita
Four questions chosen by the facts above, so every food answers differently.
How many calories are in a portion of fajita?
A typical portion (300 g, one serving) gives 375 kcal. Per 100 g the figure is 125 kcal.
Is fajita high in niacin?
Yes. Fajita, chicken, meat only, takeaway and restaurant has 9.7 mg niacin per 100 g, 61 % of the NRV, above the 30 % threshold for a “high in” claim.
Which vitamins and minerals does fajita have most of?
By share of the daily reference intake: niacin (9.7 mg, 61 %), chloride (480 mg, 60 %) and phosphorus (176 mg, 25 %) per 100 g.
Is fajita a good source of protein?
Fajita, chicken, meat only, takeaway and restaurant has 16.8 g protein per 100 g, 53 % 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 19-464, Fajita, chicken, meat only, takeaway and restaurant, published by Public Health England under the Open Government Licence v3.0. Main data references: Reviewed 2013. Aspland and James Ltd, Nutrient analysis of ethnic takeaway foods, 1997. Values are per 100 g of the edible part; a serving is 300 g, one serving, the usual UK portion for dishes. 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 603 dishes 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: Whole Chicken). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More dishes
From the same group, with calories per 100 g, and the foods with the most niacin.
More dishes
- Casserole, pork and apple100 kcal
- Curry, chicken korma127 kcal
- Faggots in gravy, retail, reheated148 kcal
- Moussaka, vegetable, retail98 kcal
- Pilau, mushroom138 kcal
- Salmon, farmed, baked232 kcal
- All 603 dishes