Fage Total 0% Greek yoghurt contains 57 kcal per 100g — one of the lowest calorie yoghurts in UK supermarkets with meaningful protein content. Müller Light is 49 kcal per 100g. Activia Fat Free is 55 kcal per 100g. All three are free on Slimming World.
The key split in yoghurt is between fat-free and full-fat, and between plain and flavoured. A plain fat-free Greek yoghurt is typically 50–60 kcal per 100g and free on SW. A full-fat flavoured yoghurt from the same shelf can be 150–180 kcal per 100g and 4–6 syns. Same aisle, very different calorie and syn cost.
This guide covers calories and Slimming World syn values for every mainstream UK yoghurt brand — Greek yoghurt, fromage frais, Müller, Activia, and supermarket own-brands.
Müller Light contains 49 kcal per 100g — the lowest calorie mainstream flavoured yoghurt in UK supermarkets. Activia Fat Free is 55 kcal per 100g. Fage Total 0% is 57 kcal per 100g. All three are free on Slimming World.
For plain yoghurt used in cooking and as a topping, fat-free natural yoghurt is 50–56 kcal per 100g and free on SW. Quark is lower still at around 67 kcal per 100g and also free — the closest thing to cream cheese texture at near-zero calorie cost.
The table below covers calories and Slimming World syn values per 100g for the most popular UK yoghurt brands.
| Yoghurt | Per 100g | Calories | Protein | SW Syns |
|---|---|---|---|---|
| Müller Light (flavoured) | 100g | 49 kcal | 4.5g | Free |
| Activia Fat Free (flavoured) | 100g | 55 kcal | 4.8g | Free |
| Fage Total 0% Greek yoghurt | 100g | 57 kcal | 10.3g | Free |
| Arla Skyr (plain) | 100g | 63 kcal | 11g | Free |
| Total 0% with honey (split pot) | 150g pot | 122 kcal | 12g | 4 |
| Yeo Valley Fat Free Natural | 100g | 54 kcal | 5.4g | Free |
| Onken Fat Free Natural | 100g | 52 kcal | 5.6g | Free |
| Müller Corner (full fat, fruit) | 150g pot | 193 kcal | 5g | 10 |
| Activia (full fat, flavoured) | 100g | 100 kcal | 3.5g | 5 |
| Fage Total 2% Greek yoghurt | 100g | 73 kcal | 9.7g | 1 |
| Fage Total 5% Greek yoghurt | 100g | 97 kcal | 9.1g | 2.5 |
| Fage Total Full Fat (10%) | 100g | 133 kcal | 8.2g | 3.5 |
The Fage Total 0% split pots with honey or fruit compote are not free — the sweetened compartment adds syns. The plain 0% tub is free; the split pot version is not. This catches a lot of members out because the packaging looks similar.
Fage Total 0% is free on Slimming World. Fage Total 2% is approximately 1 syn per 100g. Fage Total 5% is around 2.5 syns per 100g. Full-fat Greek yoghurt (10% fat) is 3.5 syns per 100g. Only the 0% fat variety is free.
Fage 0% is the most popular Greek yoghurt on plan because it is free, high in protein (10.3g per 100g), and works in both sweet and savoury contexts. It substitutes for cream in pasta sauces, for soured cream on jacket potatoes, for cream cheese in cheesecakes, and for whipped cream as a dessert topping. No other free food is as versatile.
Yes — Müller Light is free on Slimming World. All flavours in the standard Müller Light range are free, including the fruit and dessert-inspired varieties. At 49 kcal per 100g they are among the lowest calorie flavoured yoghurts available, and the wide range of flavours makes them useful as a daily dessert substitute.
Müller Corner and Müller Rice are not free — both contain added fat and sugar that take them off the free list. Only Müller Light (the specifically named lighter range) is free. The packaging distinction matters: Müller Light = free, all other Müller products = syns.
Plain skyr (Arla, Siggi's, and own-brand supermarket skyr) is free on Slimming World. Skyr is an Icelandic-style strained yoghurt with around 11g protein per 100g — higher than most Greek yoghurts. At 63 kcal per 100g it is slightly higher calorie than Müller Light but significantly higher in protein.
Flavoured skyr needs checking individually. Most plain skyr varieties are free. Many flavoured skyr pots contain added sugar that pushes them to 1–2 syns. The Arla Skyr plain range is reliably free; the flavoured range varies — check the app for your specific pot.
Arla Skyr and Fage Total 0% have the highest protein content among free yoghurts on Slimming World. Skyr contains approximately 11g protein per 100g. Fage Total 0% contains 10.3g per 100g. Both are substantially higher protein than standard fat-free yoghurts like Müller Light at 4.5g per 100g.
For post-workout recovery or high-protein breakfast bowls, Fage 0% or skyr is a better choice than Müller Light for the same or lower syn cost. A 200g bowl of Fage 0% with fruit provides 20.6g protein for 0 syns — the same protein you would get from around 65g of chicken breast.
Fage Total 0%, fat-free natural yoghurt, and quark all substitute for cream at zero syns. Fage 0% stirs into pasta sauces and soups at the end of cooking without splitting if the heat is kept low. Quark whisked with a tablespoon of sweetener and vanilla extract is a convincing substitute for whipped cream as a dessert topping. Fat-free fromage frais works in dips and as a baked potato topping.
None of these substitutes are identical to cream — the texture and richness are different. They are not compromises in the sense of being unpleasant; they are different foods that serve the same functional role in a recipe for zero syns versus 5–8 syns for double cream.
For more dairy calories, see Calories in Milk UK — including Slimming World HEA portions for skimmed, semi-skimmed, and whole milk.
Related Articles
