How Many Syns In Whiskey? Find Out Here!

Updated on 
29 May, 2022

Is Whiskey High In Syns On Slimming World? - Our Syn Guide!

Compared to other diets, the slimming world plan allows you to drink alcohol and still lose weight as long as you keep an eye on the syns in your drinks, but what about whiskey? Is it high in syns?

Whiskey on average has 3 syns for a standard 25 ml shot making it quite high in syns, this can differ according to the whiskey, however, so we suggest drinking mindfully to avoid using too many syns.

How Many Syns In Whiskey?

To find out more about whiskey and its syns we've composed a short guide below which will cover how much whiskey you can drink in the slimming world, syn values of whiskey types and mixers plus some syn values of other kinds of alcohol to help you compare.

How Many Whiskeys Can You Drink On Slimming World?

At 3 syns for a single shot, you could have up to 4 single shots of whiskey or two double shots before using up your daily slimming world syn allowance.

To avoid going over your syns by accident we recommend pouring out your shots in a proper serving rather than estimating when making up a drink.

Slimming world also recommends you avoid saving all your syns for drinking since it can lead to binge drinking past your tipping point leading to poor decisions such as overeating as alcohol stimulates your appetite.

Syn Values Of Whiskey & Mixers

As we mentioned above, whiskey syns can vary according to the type that you buy and mixers will also change the syn value of your drink.

We've listed some syn values of popular whiskey and mixers to help you stay on track below.


  • The Famous Grouse Finest Blended Scotch Whisky 1 Litre - 3 syns.
  • Jameson Triple Distilled Irish Whiskey 700ml - 3 syns.
  • Southern Comfort Original Liqueur with Whiskey 1 Litre - 3 syns.
  • Johnnie Walker Red Label Blended Scotch Whisky 70cl - 3 syns.
  • Jack Daniel's Tennessee Whiskey Blended with Honey Liqueur 5cl - 3 syns.
  • Jack Daniel's Tennessee Whiskey Blended with Cinnamon Liqueur 5cl - 3.5 syns.
How Many Syns In Whiskey?


  • Jack Daniel's Whisky & Diet Coke - 3 syns.
  • Jack Daniel's Whisky & Coke - 6 syns.
  • Whisky & Diet Lemonade - 3 syns.
  • Whisky & Lemonade - 4 syns.
  • Jack Daniel's Tennessee Whiskey Apple Liqueur and Tonic 5% 250ml - 7.5 syns.

Syn Values Of Alcohol

If you are interested to see how whiskey is in syns compared to other kinds of usual alcohol, we've listed some syn values of types below to see the difference.

  • Rum 35-40% - 2.5 syns for 25ml.
  • Whiskey - 3 syns for 25ml.
  • Vodka - 3 syns for 25ml.
  • Gin - 3 syns for 25ml.

Tips For Drinking Whiskey On Slimming World

Drinking in moderation on the slimming world plan is more than okay when done in moderation, but there are some useful tips and tricks below to know when drinking alcohol in general.

  • Stay hydrated - It can be easy to drink your drinks faster when dehydrated, instead sip slowly and have alternate water in between drinks.
  • Measure - Even when drinking at home, to stay on track with your syns you should be measuring your shots properly of 25ml.
  • Choose a syn free mixer - Avoid mixing your whiskey with full sugar coke or lemonade, this adds so many unnecessary syns.
  • Eat before - Eat well before drinking, this reduces the effects of alcohol and stops you from overdrinking.
  • Plan ahead - If drinking out, know your limit and the amount you are going to drink beforehand to prevent you from going over your syns.

Last Words

To conclude, whiskey is quite high in syns at 3 syns for a standard single shot, always drink whiskey in moderation and ensure you are measuring out your shots to keep on track.

How Many Syns In Whiskey?

We recommend choosing mixers such as diet coke or lemonade to help keep your drinks syns lower and avoid added sugar.

Jennifer is a certified nutritionist and weight loss coach with a Master's in Nutrition from Cambridge. With over 10 years experience, she shares healthy recipes and science-backed slimming tips on SheCooksSheEats to help people reach their wellness goals. Jennifer stays up-to-date by regularly attending conferences and continuing her nutrition education. She aims to provide research-backed advice to inspire balanced, happy living.
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