How Many Syns In Coke aka Coca Cola? 500ml bottle, 330ml can?

Updated on 
9 March, 2026

How Many Syns In Coke? Is Coca-Cola High In Syns? How Many Syns Does A 500ml Bottle Have?

Soda can be a sneaky source of calories if you're not careful, leading to weight gain if you drink a lot of soda throughout the day, but what about coca-cola? Is it high in syns?

Is Coca-Cola High In Syns? How Many Syns Does A 500ml Bottle Have?

A 500ml bottle of coca cola has 10 syns making this drink very high in syns, for a 330ml you are looking at using 6.5 syns.

In our syn guide below we will discuss why coca cola is so high in syns, some syn values and low syn alternatives of other sodas to keep your syns on track.

Why Is Coca-Cola High In Syns?

At 10 syns for a 500ml bottle and 6.5 syns for a 330ml can, coca-cola is very high in syns using over half of your daily syn allowance on the slimming world plan. Original coca-cola gets its high syn value from the sugar content having 35g of sugar in one 330ml can which is your whole recommended intake of sugar for the day.

Syn Values Of Coca Cola

Coca-cola has a huge range of drinks on offer, with diet and sugar-free options to help keep syns low, we've listed most of their range along with their syn values down below.

Syn Values Of Coca Cola
  • Coca-Cola Coke - 5 syns per glass.
  • Coca-Cola Coke Cherry - 5.5 syns a glass.
  • Coca-Cola Zero Sugar Zero Caffeine - Syn free.
  • Coca-Cola Zero Sugar Vanilla - Syn free.
  • Diet Coke Sublime Lime - 0.5 syns a can.
  • Diet Coca-Cola - Syn free.
  • Diet Coke Strawberry - 0.5 syns for 500ml.

Low Syn Alternatives To Coca Cola

If you find coca cola to be too high in syns there are lots of other low-syn soda alternatives, we've listed some options down below so you can compare syns.

  • Up Free 330Ml 24 Pack - 0.5 syns per can.
  • Pepsi Diet 8X330 Ml - 0.5 syns per can.
  • Sainsbury's Pineapple & Grapefruit Juice Drink, Zero Added Sugar 2L - 0.5 syns.
  • Fanta Orange Zero 2L - 0.5 syns per glass.
  • Pepsi Max Cherry 2L - Syn free.
  • Sprite No Sugar 2L - 0.5 syns per bottle.
  • Oasis Citrus Punch 500Ml - 2.5 syns.
  • Schweppes Slimline Lemonade 6x330ml - 0.5 syns.
  • IRN-BRU Sugar Free 2L - 0.5 syns.
  • Pepsi Max - Syn free.
  • Schweppes Diet Lemonade 2 Litre Bottle - 0.5 syns per glass.
  • Tesco Diet Lemonade 4X330ml - 0.5 syns per can.
  • Sainsbury's Diet Lemonade 2L - 0.5 syns a glass.
  • Sainsbury's Cola Zero 2L - 0.5 syns.
  • Vimto Sparkling, No Added Sugar 6x330ml - 0.5 syns per 100ml.
  • Tesco Lemon & Lime Zero 2L - 0.5 syns per glass.
  • Tesco No Added Sugar Cloudy Lemonade 2L Bottle - 0.5 syns per glass.
  • Lipton Ice Tea Lemon 500Ml - 2.5 syns.
  • Orangina 420Ml - 2.5 syns.
  • Fanta Orange 500Ml - 2.5 syns.
Low Syn Alternatives To Coca Cola

Last Words

To conclude, coca-cola is a very high drink if you choose the full sugar options, having up to 35g of sugar in just one can of the drink and around 6.5 syns which is around half of your daily syn allowance. To save syns we suggest opting for no sugar diet drinks when you crave soda which is most of the time syn free.

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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