Syns in A Litre Bottle Of Vodka: Complete Slimming World Guide

Updated on 
9 March, 2026

Is A Litre Bottle Of Vodka High In Syns? Can I Drink Vodka On Slimming World?

If you're planning a night out with friends or celebrating on the weekend, you might be wondering about the best kind of alcohol to have on the slimming world plan without ruining all of your progress.

Is A Litre Bottle Of Vodka High In Syns? Can I Drink Vodka On Slimming World?

A litre bottle of vodka has around 100 syns, for a 25ml shot you are looking at 2.5 syns and for a double shot 5 syns, making it quite a low syn alcohol choice as long as you drink it in moderation and be smart with the mixers.

We've discussed in further detail below how much vodka you can drink on the SW plan, some syn values of vodka and various mixers and low syn alternative alcohol options to help with your weight loss on the plan.

How Many Syns In A 70cl Bottle Of Vodka?

In a typical 70cl bottle of vodka, you can expect 7.5 syns.

How Much Vodka Can I Drink On Slimming World?

At 2.5 syns for a 25ml shot you can have up to 6 shots of vodka on the slimming world plan or 3 double shots before using your whole 15 syn daily allowance, making it a great low syn drink choice.

Vodka can be easy to overdrink, so we suggest measuring out your pours and alternating your drinks with water, eating before can also help to slow you down.

Be careful when it comes to what you mix your vodka with, full sugar tonic can be high in syns as well as coke, opt for diet versions such as slimline tonic and sugar-free cordial or coke which only have 1-2 syns.

Vodka Diet Lemonade & Other Mixer Syn Values

Depending on what you mix your vodka with your alcoholic drink can have varying syns, to give you some ideas for low syn drinks we've listed a few syn values of vodka and mixers down below to help you out.

Vodka & Mixer Syn Values
  • Alfie Vodka, Lime & Lemonade - 6.5 syns a can.
  • Vodka & Tomato Juice - 4 syns.
  • Harry Bromptons Ice Tea with Vodka Citrus Flavoured - 5 syns for a 250ml can.
  • Vodka & Orange Juice - 6 syns.
  • Lidl Rachmaninoff Vodka, Lime and Soda - 4 syns per can.
  • Sainsbury’s Vodka Lime and Soda - 6 syns a can.
  • Smirnoff Vodka Cola - 9 syns per drink.
  • Tesco Grain Vodka Lime and Diet Lemonade - 3.5 syns per can.
  • Vodka, Lime & Soda - 4 syns.
  • Vodka & Coke - 6 syns.
  • Vodka with Red Bull (a little more if its a Jager Bomb!) - 5.5 syns.
  • Vodka with Sugar-Free Red Bull - 3 syns.

Low Syn Alternatives To Vodka

If you find vodka to be too high in syns or you are looking for some other low-syn alternative alcohol, we've got some great options for you to check out down below.

  • Rum 35-40% - 2.5 syns for 25ml.
  • Gin - 3 syns for 25ml.
  • Vodka - 3 syns for 25ml.
  • Whiskey - 3 syns for 25ml.
  • Marks & Spencer Diet Tonic and Gin- 5.5 syns a can.
  • Sainsbury Gin and Tonic - 7 syns for a can.
  • Sainsbury Diet Version Gin Rhubarb and Ginger - 3.5 syns.
  • Tesco Low-Calorie Tonic With London Gin Dry - 3.5 syns a can.
  • Kopparberg Gin Slimeline Strawberry and lime flavour - 3.5 syns a can.
  • Fevertree Elderflower Gin and Tonic– 9 syns for the bottle.
  • Navigator Gin and Ginger Rhubarb flavoured - 8 syns per can.
  • Aldi Greyson's Gin and Diet Tonic – 3.5 syns for 250ml.
  • Gordon’s Slimeline Tonic and Gin - 4 syns a drink.
  • Limehouse Aromatic Gin and Diet Pink Tonic - 3.5 syns for 250ml.
Low Syn Alternatives To Vodka

Last Words

Overall, vodka is a great low-syn drink choice on the slimming world plan, having just 2.5 syns for a single shot and 5 syns for a double shot. To keep syns low, we suggest choosing to mix vodka with low syn mixers like diet tonic for example, always measure your shots to stay on track with syns.

Frequently Asked Questions

How are syn values calculated?

Syn values are calculated using a formula based on calories, saturated fat and sugar content per serving. They’re not the same as calories — a product can be low in calories but higher in syns if it’s high in sugar or fat. Always check the official Slimming World app for the most accurate and up-to-date syn values.

Do syn values change?

Yes. When manufacturers reformulate their products, the syn value can go up or down. This is why we recommend double-checking with the Slimming World app or your consultant, especially if a product’s packaging has changed recently.

How many syns should I have per day?

Most Slimming World members work with 5 to 15 syns per day. Your consultant will advise on the right amount for you. The key is to use your syns on the things you enjoy most — whether that’s a chocolate bar, a glass of wine, or a packet of crisps.

Jennifer
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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