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Syns & Slimming World

How Many Syns in Latte (Semi-Skimmed)?

By Jenny Updated

A latte made with semi-skimmed milk is one of the most popular coffee shop orders in Britain, and it sits in an interesting spot on Slimming World. Unlike a black Americano or an espresso, which are essentially free, a latte is mostly steamed milk with a single or double shot of espresso poured through it, finished with a thin layer of microfoam.

Because milk carries the bulk of the calories, the syn value climbs quickly with cup size, and a large takeaway latte can land somewhere between 5 and 7 syns depending on the chain. The good news is that semi-skimmed is the standard pour in most coffee shops in the UK, so unless you specifically ask for whole milk or a syrup, you are already drinking the lighter default.

The clever way to enjoy a latte on plan is to use your Healthy Extra A allowance to cover the milk in your first cup of the day, which can take a small homemade latte down to zero syns. Beyond the first cup, it helps to know roughly what each chain pours: most regulars sit around 3 syns, mediums around 4 to 5, and larges around 5 to 7.

Flavoured syrups, whipped cream and chocolate dustings all add on top, so a plain wet latte is always the most plan-friendly choice. If you are out and about, asking for a smaller size, or ordering a flat white instead, often saves a syn or two because the milk volume is lower.

Treated sensibly, a daily latte fits comfortably into a balanced plan without derailing your week.

Per serving

Latte (Semi-Skimmed) — syn values

Portion Syns kcal
small (250ml) 3 100
medium (340ml) 4 136
large (400ml) 5 160
extra large (600ml) 7 240
homemade with HExA milk (250ml) 0 100
single espresso shot only 0 2
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 Latte (Semi-Skimmed).

20%
of a 15-syn day
based on standard daily allowance
33kcal / syn
calories per syn
the lower, the more 'value' your syns get
6
portion sizes covered
from snack to full serving
0syns
cheapest portionat homemade with HExA milk (250ml)
smallest serving

Brand breakdown

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

Brand Product Portion Syns kcal
Starbucks Tall Latte (semi-skimmed) 354ml 5 150
Starbucks Grande Latte (semi-skimmed) 473ml 7 190
Costa Primo Latte (semi-skimmed) small 4 121
Costa Medio Latte (semi-skimmed) medium 5 169
Costa Massimo Latte (semi-skimmed) large 7 222
Caffè Nero Regular Latte (semi-skimmed) regular 5 146
Pret A Manger Latte (semi-skimmed) regular 5 155
Greggs Latte (semi-skimmed) regular 5 150

Lower-syn alternatives

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

Black Americano

Free

An Americano with a splash of milk is essentially Free on Slimming World, saving you 3-7 Syns compared to a latte. If you gradually reduce the milk in your coffee, many members find they prefer the stronger flavour after a few weeks. Add sweetener if needed.

Flat white

3-4 Syns

A flat white uses less milk than a latte, typically saving 1-2 Syns per cup. It delivers a stronger coffee flavour with a velvety microfoam texture. At Costa or Starbucks, a small flat white is around 3 Syns versus 4-5 for their smallest latte.

Homemade latte with HExA milk

Free

Making your morning latte at home using your Healthy Extra A milk allowance costs 0 Syns. Use 250ml semi-skimmed, froth it with a cheap milk frother, and add a shot from a Nespresso or cafetiere. You save 3-5 Syns every single morning.

FAQs

How many syns in a latte?

A small latte with semi-skimmed milk is around 3 Syns, a medium is 4 Syns, and a large is 5 Syns. Coffee shop sizes run higher because they use more milk: a Starbucks Grande is 7 Syns and a Costa Massimo is also 7 Syns. A homemade latte using your HExA milk allowance can be 0 Syns.

Is a latte free on Slimming World?

A latte is not automatically free because it is mostly steamed milk. However, you can make it free at home by using your Healthy Extra A milk allowance. A homemade small latte with 250ml semi-skimmed from your HExA is 0 Syns. Beyond that first cup, every additional latte needs synning at 3-5 Syns depending on size.

How many syns in a Starbucks latte?

A Starbucks Tall latte with semi-skimmed milk is 5 Syns and a Grande is 7 Syns. Costa Primo is 4 Syns, Medio is 5, and Massimo is 7. Caffe Nero and Pret lattes are around 5 Syns for a regular. Always order semi-skimmed and skip flavoured syrups to keep the count down.

What is the best coffee to have on Slimming World?

Black coffee and espresso are Free on Slimming World at 0 Syns. A flat white uses less milk than a latte, saving 1-2 Syns. If you love lattes, make your first cup at home using HExA milk for 0 Syns and save your coffee shop latte at 5 Syns for a planned treat. Skip syrups and whipped cream.

Lower-syn drink alternatives

Food Portion Syns vs current
Coffee Black instant or filter coffee FREE same

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