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Syns & Slimming World

How Many Syns in Lemsip and Cold Remedy Sachets?

By Jenny Updated

When a cold or flu strikes, the last thing on your mind is counting syns, and rightly so. Your health comes first, and Slimming World is the first to remind members that medicines, whether prescribed or bought over the counter, should never be skipped or skimped on for the sake of a slimming plan. That said, many cold and flu remedies sold in pharmacies and supermarkets contain a surprising amount of sugar, which is why they have a syn value worth being aware of once you are back on your feet and tracking properly.

A standard Lemsip sachet, dissolved in hot water, typically weighs in at around 1.5 syns per serving. That comes from the sugar and glucose syrup used to mask the rather medicinal taste of paracetamol and phenylephrine. Liquid remedies such as Night Nurse, Beechams All-in-One, and Day Nurse tend to land between 1.5 and 2.5 syns per dose, depending on the syrup base. Lozenges, throat sweets, and cough mixtures all add up too, though most members find the totals across a day of illness remain modest, perhaps 4 to 6 syns in addition to the usual allowance.

The sensible approach is to take whatever your pharmacist or doctor recommends and not worry about syns while you are genuinely poorly. Hydration, rest, and your Free Foods will do far more for recovery than rigid tracking. Once you are feeling brighter, look for sugar-free or maximum strength versions, which often have lower syn values, or switch to plain paracetamol and a homemade hot honey and lemon, which can be syn-counted exactly. Many supermarket own-brand cold powders come in sweetener-based formulas that drop the syns to half a syn or less per sachet.

Per serving

Lemsip and Cold Remedy Sachets — syn values

Portion Syns kcal
1 standard Lemsip sachet 1.5 45
1 Lemsip Max sachet 2 55
1 sugar-free Lemsip sachet 0.5 12
Night Nurse liquid 20ml dose 2 55
Day Nurse liquid 20ml dose 1.5 42
Beechams All-in-One 20ml dose 2 58
1 throat lozenge (sugar) 0.5 12
1 throat lozenge (sugar-free) 0 4
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 Lemsip and Cold Remedy Sachets.

10%
of a 15-syn day
based on standard daily allowance
30kcal / syn
calories per syn
the lower, the more 'value' your syns get
8
portion sizes covered
from snack to full serving
0syns
cheapest portionat 1 throat lozenge (sugar-free)
smallest serving

Brand breakdown

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

Brand Product Portion Syns kcal
Lemsip Original Lemon Sachet 1 sachet 1.5 45
Lemsip Max Cold and Flu Lemon 1 sachet 2 55
Lemsip Max Sugar Free Lemon 1 sachet 0.5 12
Night Nurse Liquid Original 20ml dose 2 55
Day Nurse Liquid 20ml dose 1.5 42
Beechams All-in-One Hot Lemon 1 sachet 2 58
Covonia Cough Mixture 10ml dose 1.5 40
Strepsils Honey and Lemon Lozenge 1 lozenge 0.5 12

Lower-syn alternatives

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

Sugar-free Lemsip

0.5 Syns per sachet

Switching from standard Lemsip at 1.5 Syns to the sugar-free version at 0.5 Syns saves 1 Syn per dose. Over a full day of illness taking 4 sachets, that is 4 Syns saved. The taste is slightly different but perfectly drinkable when you are feeling rough.

Paracetamol tablets with hot lemon

Free (tablets) + 1 Syn (honey)

Plain paracetamol tablets are Syn-free, and a mug of boiling water with fresh lemon juice costs nothing. Add a teaspoon of honey at 1 Syn if you need sweetness. This gives you the same relief as a Lemsip at 1.5 Syns but with complete control over the Syn cost.

FAQs

How many syns in a Lemsip?

A standard Lemsip sachet is 1.5 Syns, while the Max version is 2 Syns per sachet. The sugar-free Lemsip is just 0.5 Syns, making it the best option if you are tracking closely. Taking the recommended 3-4 sachets a day could cost 4.5-8 Syns with the standard version, so the sugar-free swap saves you plenty.

Are cold remedies free on Slimming World?

No, most cold remedies carry Syns because of the sugar and glucose syrup used to improve the taste. A standard Lemsip is 1.5 Syns, Night Nurse is 2 Syns per dose, and sugar throat lozenges are 0.5 Syns each. However, Slimming World always says to take whatever medicine you need and not skip it for Syns.

Should I count Lemsip syns when I'm ill?

Slimming World recommends you focus on getting better rather than worrying about Syns when you are genuinely poorly. Take whatever remedies your pharmacist recommends. Once you are recovering, you can switch to sugar-free versions at 0.5 Syns or use plain paracetamol with a homemade hot lemon and honey.

What is the lowest syn cold remedy?

Sugar-free Lemsip Max at 0.5 Syns per sachet is the lowest branded option. Sugar-free throat lozenges are 0 Syns each. Plain paracetamol tablets are also Syn-free. A homemade hot drink with boiling water, fresh lemon juice and a teaspoon of honey at 1 Syn is another low-cost alternative.

Lower-syn drink alternatives

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

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