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Syns & Slimming World

How Many Syns in Feta Cheese?

By Jenny Updated

Feta is a brined Greek cheese with a tangy, salty bite and a crumbly texture that turns creamy when warmed. On Slimming World it sits in the synned dairy category rather than Healthy Extra A, which surprises some members who expect any cheese to count as their HEX A allowance. The reason is straightforward: HEX A choices are pre-portioned, calorie-controlled measures designed to deliver calcium within a fixed allowance, and standalone feta crumbles do not feature on that list at the time of writing.

That said, feta is genuinely useful in a sensible plan. Compared to mature cheddar at around 416 calories per 100g, traditional feta lands closer to 250 calories per 100g, so a modest 30g sprinkle costs roughly three syns and delivers a powerful flavour hit. A little goes a long way because the salt and tang dominate, meaning you can scatter it sparingly over speed-food-heavy salads, baked peppers, watermelon chunks, or a Greek-style traybake of courgette, tomato and red onion and still feel like you have indulged.

Light or reduced-fat feta brings the syn cost down further, but read labels carefully because some supermarket versions labelled "salad cheese" are made with cow's milk rather than the traditional sheep and goat blend, and the calories vary. Brined feta keeps for weeks in its liquid, so you do not need to use the block in one go. Many members batch-portion 30g cubes into a tub for the week ahead, which removes the guesswork at lunchtime. Pair it with plenty of speed veg, lemon, oregano and a drizzle of balsamic to keep meals satisfying without leaning on extra synned ingredients.

Per serving

Feta Cheese — syn values

Portion Syns kcal
15g 2 38
30g 3 75
40g 4 100
50g 5 125
60g 6 150
100g 12 250
Syn values are based on Slimming World 2026 guidance. Always double-check with your group or app.

Numbers at a glance

Quick auto-calculated stats for Feta Cheese.

13.3syns / 100g
Syns per 100g
useful for comparing brands
13%
of a 15-syn day
based on standard daily allowance
19kcal / syn
calories per syn
the lower, the more 'value' your syns get
6
portion sizes covered
from snack to full serving
2syns
cheapest portionat 15g
smallest serving

Brand breakdown

Popular supermarket and branded products, with the portion-level syn count.

Brand Product Portion Syns kcal
Pilpa Authentic Greek Feta 30g 4 80
Tesco Greek Feta 30g 3 75
Sainsbury's Greek Feta Cheese 30g 4 78
Morrisons Greek Feta 30g 3 76
Lidl Eridanous Greek Feta PDO 30g 4 80
Aldi Specially Selected Greek Feta 30g 4 79
President Greek Feta 30g 4 81
Waitrose Greek Feta PDO 30g 4 82

Lower-syn alternatives

Swaps that keep the feel of the original without the syn hit.

Cottage cheese (fat-free)

Free

Fat-free cottage cheese is Free on Slimming World and gives a mild, creamy cheese element to salads and jacket potatoes. It lacks the salty tang of feta but saves you the 3 Syns per 30g, making it a useful everyday swap.

Quark

Free

Crumble or dollop quark as a feta substitute in wraps and baked dishes. It is Free on Slimming World, so you can use it generously. Season with lemon juice and dried oregano to mimic some of the sharp, herby character feta brings to Mediterranean dishes.

Light feta or salad cheese

2 Syns per 30g

Supermarket light feta or salad cheese alternatives are often a Syn or two lower per 30g than standard feta. Check the label carefully, as some are made with cow's milk rather than sheep and goat, but for Syn-saving purposes they do the job.

FAQs

How many syns in feta cheese?

Feta cheese is approximately 3 Syns per 30g on Slimming World, though some brands like Pilpa and Sainsbury's sit closer to 4 Syns for the same weight. A 15g sprinkle is around 2 Syns, while a generous 100g serving would cost you about 12 Syns. Because feta is salty and tangy, a little goes a long way — 30g crumbled over a salad delivers plenty of flavour for a modest Syn spend.

Is feta a Healthy Extra on Slimming World?

Feta does not typically feature on the Healthy Extra A list on Slimming World. It must be synned rather than counted as your daily HExA cheese allowance. At 3-4 Syns per 30g, it is still a reasonable choice compared to cheddar, but you cannot swap it in as a Free Healthy Extra. Always check the current SW app for any updates to the HExA list.

Can you have feta on Slimming World?

Yes, feta works well on Slimming World when portion-controlled. A 30g serving at 3 Syns pairs beautifully with Speed foods like tomatoes, cucumber, red onion and peppers for a Greek-style salad. Pre-portioning 30g cubes for the week ahead removes guesswork at lunchtime. Avoid eating large amounts straight from the block, as 100g would cost 12 Syns.

Is feta lower in syns than cheddar?

Yes, feta is generally lower in Syns than mature cheddar. A 30g portion of feta is around 3-4 Syns, while the same weight of cheddar is typically 5-6 Syns. Feta also delivers a stronger flavour per gram thanks to its salt and tang, so you naturally use less. It is a smart swap when you want cheese flavour without the higher Syn cost of hard cheeses.

Lower-syn dairy alternatives

Food Portion Syns vs current
Greek Yogurt 0% Fat 170g (Fage 0%) FREE −2 syns
Creme Fraiche Half Fat 1 tbsp (15ml) 1 −1 syns
Cottage Cheese 100g 1.5 −0.5 syns
Ricotta 30g 1.5 −0.5 syns
Soured Cream 1 tbsp (15ml) 1.5 −0.5 syns

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