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Syns & Slimming World

How Many Syns in Coffee?

By Jenny Updated

Coffee is one of those rare pleasures that fits beautifully into Slimming World, provided you know where the hidden syns are lurking. A plain black coffee, whether instant, filter, cafetiere or espresso, is essentially free. The drink itself contains only a couple of calories per cup, so you can sip as many as you like throughout the day without touching your daily syns allowance. Many members find that switching to black coffee, perhaps with a dash of sweetener, is one of the simplest swaps they can make on plan.

The complications begin the moment milk, sugar or syrups enter the cup. A splash of semi-skimmed milk in a mug-sized coffee will set you back around half a syn, while a latte or cappuccino made with semi-skimmed quickly climbs into the 2-3 syn region depending on size. If you take your coffee with a teaspoon of sugar, that is roughly one extra syn per cup, and two sugars doubles it. Flavoured syrups, whipped cream toppings and shop-bought iced coffees can push a single drink past 8 syns before you have even sat down.

The smartest approach on Slimming World is to use your Healthy Extra A milk allowance to cover your daily coffees. A 350ml measure of skimmed milk stretches surprisingly far across three or four small lattes, especially if you make them at home. Sweeteners such as Canderel, Splenda or stevia drops add zero syns, and unsweetened almond milk is another low-syn alternative if dairy is not your friend. Decaf counts identically to caffeinated, so an evening cup need not derail anything. Treat coffee shop visits as planned indulgences, check the syn values in advance using the Slimming World app, and you can enjoy your daily brew without compromise.

Per serving

Coffee — syn values

Portion Syns kcal
Black instant or filter coffee (1 mug) 0 2
Black espresso (single shot) 0 1
Coffee with dash of semi-skimmed milk 0.5 12
Flat white with semi-skimmed milk 2 65
Latte made with semi-skimmed milk (medium) 3 95
Cappuccino with semi-skimmed milk (medium) 2.5 75
Kenco or Nescafe latte sachet (1) 3 75
Coffee with 1 tsp sugar and semi-skimmed milk 1.5 35
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 Coffee.

8
portion sizes covered
from snack to full serving
0syns
cheapest portionat Black instant or filter coffee (1 mug)
smallest serving

Brand breakdown

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

Brand Product Portion Syns kcal
Nescafe Gold Latte Sachet 1 sachet (15.5g) 3 70
Kenco Iced Latte Sachet 1 sachet (18g) 3.5 75
Costa Flat White (Primo) 1 cup (236ml) 6 121
Starbucks Caffe Latte with Semi-Skimmed (Tall) 1 cup (354ml) 6.5 132
Pret A Manger Cappuccino with Semi-Skimmed 1 regular cup 5 98
Douwe Egberts Cafitesse Cappuccino Sachet 1 sachet (12.5g) 3 62
Nescafe Azera Americano (Black) 1 mug (1.8g) 0 4
McDonald's Latte with Semi-Skimmed (Regular) 1 cup (350ml) 5.5 113

Lower-syn drink alternatives

No lower-syn drink alternatives in our index — Coffee is already at the lower end. Browse the full drink list →

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