60 %
Vitamin C contributes to the normal function of the immune system, to the reduction of tiredness and fatigue, and to normal collagen formation.
How many calories are in tomato and onion salad?
135kcal
in a 300 g serving
45 kcal per 100 g.
Source: UK CoFID 2021, record 15-876. Checked 5 October 2026.
8.1 gFat
1.8 gProtein
3.9 gFibre
60 %Daily vitamin C
What’s in a 300 g serving
More than half of a serving is water, which is why the calories stay low. What is left is mostly carbohydrate.
- 8.1 gFat
- 1.8 gProtein
- 14.7 gCarbohydrate
- 3.9 gFibre
- 270 gWater
- 1.2 gMinerals and the rest
Below average for dishes
Tomato and onion salad is 45 kcal per 100 g. The 603 dishes in this database average 180.
Tomato and onion salad45
Dishes average180
Low in sugar and salt
Low sugars and low salt by UK labelling rules, per 100 g.
Sugars, per serving12.3 g
Salt, per serving0.33 g
Vitamins and minerals in tomato and onion salad
One of the 11 reach the “source of” level, vitamin C first; none reaches “high in”.
None recorded
- Vitamin D
- Vitamin B12
Show all 11 with amounts
Vitamin C48 mg, 60 %
Folate0.054 mg, 27 %
Vitamin A0.12 mg, 15 %
Thiamin (vitamin B1)0.15 mg, 14 %
Vitamin B60.18 mg, 13 %
Niacin (vitamin B3)1.8 mg, 11 %
Pantothenic acid (vitamin B5)0.63 mg, 10 %
Biotin0.0036 mg, 7.2 %
Riboflavin (vitamin B2)0.03 mg, 2.1 %
Vitamin Dnone 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 tomato and onion salad doesn’t give you. And where to find it.
No recorded vitamin D or vitamin B12, and only 0.7 % of the riboflavin reference intake per 100 g.
Vitamin D
0mgin tomato and onion salad
Find it inBloater, grilled500 % per 100 g
Vitamin B12
0mgin tomato and onion salad
Find it inLiver, ox, raw4400 % per 100 g
Riboflavin (vitamin B2)
0.7%in tomato and onion salad, per 100 g
Find it inLiver, lamb, fried404 % per 100 g
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.
Tomato and onion salad against other dishes
Per 100 g, tomato and onion salad has the most vitamin C of the 6 here, ahead of sauerkraut.
16mg
10mg
9mg
6mg
6mg
5mg
Salad, tomato and onionthis page
Sauerkraut−6 mg
Bhaji, pea−7 mg
Potato cakes, fried−10 mg
Flan, lentil and tomato−11 mg
All values per 100 g, from the same dataset. Differences are against tomato and onion salad.
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Questions about tomato and onion salad
Four questions chosen by the facts above, so every food answers differently.
How many calories are in a portion of tomato and onion salad?
A typical portion (300 g, one serving) gives 135 kcal. Per 100 g the figure is 45 kcal.
Is tomato and onion salad a source of vitamin C?
It is a source of vitamin C: 16 mg per 100 g, 20 % of the NRV, which passes the 15 % threshold for “source of” but not the 30 % needed for “high in”.
Are these figures exact for tomato and onion salad?
No. They are calculated from a standard recipe in the UK Composition of Foods Integrated Dataset (CoFID, 2021). A different recipe, portion of sauce or cooking method will move them, so read them as a typical estimate.
Which vitamins and minerals does tomato and onion salad have most of?
By share of the daily reference intake: vitamin C (16 mg, 20 %), folate (0.018 mg, 9 %) and vitamin A (0.04 mg, 5 %) per 100 g.
How these numbers were made
Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 15-876, Salad, tomato and onion, published by Public Health England under the Open Government Licence v3.0; this record is a calculated recipe estimate. Main data references: Updated 2014. 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: Tomato). 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 vitamin C.
More dishes
- Fruit fool163 kcal
- Pakora/bhajia, potato, carrot and pea, fried355 kcal
- Pudding, Christmas316 kcal
- Sesame prawn toast, takeaway382 kcal
- Bhaji, aubergine, pea, potato and cauliflower72 kcal
- Chilli con carne120 kcal
- All 603 dishes