41 %
Iodine contributes to normal cognitive function and to normal thyroid function.
How many calories are in semi-skimmed milk?
92kcal
in a 200 g glass
46 kcal per 100 g.
Source: UK CoFID 2021, record 12-314, 22 analysed samples. Checked 5 October 2026.
3.2 gFat
6.6 gProtein
0 gFibre
41 %Daily iodine
What’s in a 200 g glass
More than half of a glass is water, which is why the calories stay low. What is left is mostly carbohydrate.
- 3.2 gFat
- 6.6 gProtein
- 9.8 gCarbohydrate
- 182 gWater
Below average for dairy
Semi-skimmed milk is 46 kcal per 100 g. The 99 dairy in this database average 224.
Semi-skimmed milk46
Dairy average224
Low in sugar and salt
Low sugars and low salt by UK labelling rules, per 100 g.
Sugars, per glass9.8 g
Salt, per glass0.25 g
Vitamins and minerals in semi-skimmed milk
One of the 19 reach the “source of” level, iodine first; none reaches “high in”.
Only a trace
- Vitamin D
- Vitamin C
- Copper
- Manganese
Show all 19 with amounts
Iodine0.062 mg, 41 %
Calcium220 mg, 28 %
Riboflavin (vitamin B2)0.36 mg, 26 %
Phosphorus180 mg, 26 %
Chloride200 mg, 25 %
Vitamin B120.0004 mg, 16 %
Potassium300 mg, 15 %
Niacin (vitamin B3)1.8 mg, 11 %
Pantothenic acid (vitamin B5)0.66 mg, 11 %
Zinc0.8 mg, 8 %
Thiamin (vitamin B1)0.08 mg, 7.3 %
Biotin0.0036 mg, 7.2 %
Vitamin B60.1 mg, 7.1 %
Magnesium22 mg, 5.9 %
Vitamin A0.044 mg, 5.5 %
Selenium0.002 mg, 3.6 %
Iron0.34 mg, 2.4 %
Folate0.004 mg, 2 %
Vitamin E0.06 mg, 0.5 %
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 semi-skimmed milk doesn’t give you. And where to find it.
No recorded vitamin D or vitamin C, and only 1.8 % of the selenium reference intake per 100 g.
Vitamin D
Tracein semi-skimmed milk
Find it inBloater, grilled500 % per 100 g
Vitamin C
Tracein semi-skimmed milk
Find it inCherries, West Indian2150 % per 100 g
Selenium
1.8%in semi-skimmed milk, per 100 g
Find it inKidney, pig, fried491 % 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.
Semi-skimmed milk against other dairy
Per 100 g, cheese (Caerphilly) has the most iodine in this comparison, followed by cheese (Red Windsor).
0.046mg
0.046mg
0.041mg
0.031mg
0.027mg
0.025mg
Cheese, Caerphilly+0.015 mg
Cheese, Red Windsor+0.015 mg
Cheese, white, average+0.01 mg
Milk, semi-skimmed, UHTthis page
Yogurt, whole milk, fruit−0.004 mg
Milk, skimmed, UHT−0.006 mg
All values per 100 g, from the same dataset. Differences are against semi-skimmed milk.
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Questions about semi-skimmed milk
What the numbers say to the questions people actually search.
How many calories are in a portion of semi-skimmed milk?
A typical portion (200 ml, a glass) gives 92 kcal. Per 100 g the figure is 46 kcal.
Is semi-skimmed milk a source of iodine?
It is a source of iodine: 0.031 mg per 100 g, 21 % of the NRV, which passes the 15 % threshold for “source of” but not the 30 % needed for “high in”.
Which vitamins and minerals does semi-skimmed milk have most of?
By share of the daily reference intake: iodine (0.031 mg, 21 %), calcium (110 mg, 14 %) and riboflavin (0.18 mg, 13 %) per 100 g.
Is semi-skimmed milk a good source of protein?
Milk, semi-skimmed, UHT has 3.3 g protein per 100 g, 29 % 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 12-314, Milk, semi-skimmed, UHT, 22 analysed samples, published by Public Health England under the Open Government Licence v3.0. Main data references: Reviewed 2013. Proximate data from LGC, Nutrient analysis of ‘other’ milk and cream, 1998; fats, inorganics and vitamins values as Milk Products and Eggs Supplement 12-011. Values are per 100 g of the edible part; a glass is 200 g, a glass, the usual UK portion for dairy. 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 99 dairy 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. Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More dairy
From the same group, with calories per 100 g, and the foods with the most iodine.
