Syns in 125ml Red Wine: Complete Slimming World Guide

Updated on 
9 March, 2026

How Many Syns In 125ml Red Wine? How Many Syns Does A Small or Large 250ml Glass Of Red Wine Have?

One great advantage to choosing the slimming world diet over other diets is that you can drink alcohol on the plan within moderation, as long as your track the syns inside of the drink, but how about red wine? How many syns does a 125ml glass have?

Can I Drink Red Wine On Slimming World?

A 125ml glass of red wine has on average between 5-7 syns, making it high in syns, this syn value varies according to the percentage of the alcohol, with a higher percent having a higher syn value.

Down below, we've discussed in more detail how much red wine you can drink in the slimming world, some syn values of wine, low syn alternative alcohol and some tips for drinking on the slimming world.

How Much Red Wine Can I Drink On Slimming World?

At 5-7 syns for a 125ml glass, you can have up to 2-3 glasses of red wine before using all your 15 syn daily allowance, making it a very high syn drink. It's important to note that red wine syns can change even when pouring the same 125ml portion, for example, a 12.5% glass of red wine has 4.5 syns while a 14% wine has around 5.5 syns.

To stay on track with your syns, we suggest measuring out your portion of red wine rather than pouring freely from the bottle.

Syn Values Of Red Wine & Other Wines

Red wine and all wine types have a similar value no matter the brand that you choose, but syns start to vary according to the amount you are pouring and the percentage.

To help you stay on track with your wine syns we've listed some varying syn values down below.

Red Wine

  • Red wine 14% 125ml - 6.5 syns.
  • Red wine 14% vol 175ml - 9 syns.
  • Red wine 14% 250m - 12.5 syns.
  • Red wine 12.5-13.5% 125ml - 6 syns.
  • Red wine 12.5-13.5% 175ml - 8 syns.
  • Red wine 12.5-13.5% 250ml - 11.5 syns.
  • Red wine 10-12% 125ml - 5 syns.
  • Red wine 10-12% 175ml - 7 syns a glass.
  • Red wine 10-12% 250ml - 10 syns.

White Wine

  • Sparking Wine Like Champagne and Prosecco 125ml – 5 syns.
  • White wine 10.5-12.5% 125ml - 5 syns.
  • White wine 10.5-12.5% 175ml - 7 syns.
  • White wine 10.5-12.5% 250ml - 10 syns.
  • White wine 13% vol 125ml - 6 syns.
  • White wine 13% vol & above 175ml - 8.5 syns.
  • White wine 13% vol 250ml - 11.5 syns.
  • White wine 8-10% 125ml - 4.5 syns.
  • White wine 8-10% 175ml - 6 syns.
  • White wine 8-10% 250ml - 9 syns.

Rose

  • Rose wine 13% vol 125ml – 6 syns.
  • Rose wine 13% vol 175ml – 8.5 syns.
  • Rose wine 13% vol 250ml - 12 syns.
  • Rose wine 8-10% vol 125ml – 4.5 syns.
  • Rose wine 8-10% vol 175ml - 6 syns.
  • Rose wine 8-10% vol 250ml - 9 syns.
  • Rose wine 10.5-12.5% 125ml - 5 syns.
  • Rose wine 10.5-12.5% 175ml - 7 syns.
  • Rose wine 10.5-12.5% 250ml - 10 syns.

Low Syn Alternatives to Red Wine

If you find red wine to be too high in syns, there are plenty of other low-syn alcoholic drinks you can switch to for a night out or wind down on the weekend.

Low Syn Alternatives to Red Wine
  • Espresso Martini - 11.5 syns.
  • Negroni - 10 syns.
  • Strawberry Daiquiri - 12 syns.
  • Sainsbury Diet Version Gin Rhubarb and Ginger - 3.5 syns.
  • Martini - 6 syns.
  • Greene King IPA 500ml - 8.5 syns.
  • Aperol Spritz - 8 syns.
  • Old speckled hen 500ml - 11.5 syns.
  • Margarita - 10 syns.
  • Whisky sours - 8 syns.
  • Stella Artois Premium Alcohol-Free Lager Beer - 3 synsGuinness Original 440ml - 8 syns.
  • Pina Colada - 11 syns.
  • Marks & Spencer Diet Tonic and Gin- 5.5 syns a can.
  • Navigator Gin and Ginger Rhubarb flavoured - 8 syns per can.
  • Sainsbury Gin and Tonic - 7 syns for a can.
  • Tesco Low-Calorie Tonic With London Gin Dry - 3.5 syns a can.San Miguel 0.0% Alcohol - 4 syns per bottle.
  • Budweiser Zero Alcohol-Free Beer - 2.5 syns a bottle.
  • Becks Blue Alcohol-Free Lager - 2.5 syns a bottle.
  • Fosters 440ml – 6.5 syns.

Tips For Drinking On The Slimming World

You can still enjoy a glass of wine or two on the slimming world and lose weight at the same time as long as you drink within moderation, we've listed some tips for drinking alcohol on the plan down below.

  • Choose a smaller glass - A smaller glass of 175ml or 125ml will help you to pour less wine and therefore consume fewer syns.
  • Stay hydrated - Keep drinking water in between drinks to stay hydrated, this will also slow down your drinking consumption.
  • Eat before - Having a full stomach before drinking will help stop yourself from excessively drinking on the plan and reduce the effects of the alcohol.
  • Measure it out - Measure out how much alcohol you pour rather than freely pouring out the bottle which can be deceptive and forces you to overconsume.
Tips For Drinking On The Slimming World

Last Words

To conclude, a glass of 125ml red wine has between 5 - 7 syns according to the percentage that you choose, making it a very high syn drink which should be consumed within moderation. To save syns, we suggest measuring out your glasses of wine or switching to a lower syn alternative such as gin and slimeline tonic.

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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