Syns in Skittles: Complete Slimming World Guide

Updated on 
9 March, 2026

Can I Have Skittles On The Slimming World Plan? Are They High In Syns?

One of the best advantages to the slimming world diet is that you can eat what you want, including sweets like skittles as long as you're tracking their syns, but since skittles are high in sugar, does this also make them high in syns?

Skittles have 3.5 syns for an 18g serving, making them quite high in syns for a small portion, we, therefore, suggest having these sweets in moderation.

In our syn guide below, we will discuss in more detail how many skittles you can eat on the slimming world plan, syn values of skittles and some low syn alternatives sweets for when you feel like something sweet.

How Many Skittles Can I Eat On Slimming World?

At 3.5 syns for 18g, you can have up to around 70g of skittles before using all of your 15 syn daily allowance, making them quite high in syns, with a big 45g bag costing you nearly 10 syns for a pack!

Skittles get their high syn value from the sugar content, having 28g of sugar in a 38g bag, we, therefore, suggest having these sweets in moderation or checking out sugar-free options.

Syn Values Of Skittles

Skittles have varying syns according to the type of packs you choose, we've listed some differing syn values below to help you stay on track.

  • Skittles Vegan Chewy Sweets Fruit Flavoured Bag 18g PMP £0.15 - 3.5 syns.
  •  Skittles Vegan Chewy Sweets Fruit Flavoured Bag 45g - 9 syns.
  •  Skittles Fruits Sweets Family Size Pouch Bag 196g - 10 syns.
  •  Skittles Vegan Chewy Sweets Fruit Flavoured Pouch Bag 152g - 7.5 syns.
  •  Skittles Squishy Cloudz Chewy Sweets Fruit Flavoured Sweets Pouch Bag 94g - 5 syns.
  •  Skittles Vegan Chewy Crazy Sour Sweets Fruit Flavoured Pouch Bag 152g - 7.5 syns.
  •  Skittles Limited Edition Darkside Sweets Fun Size Bags Multipack 18 x 18g Bags - 3.5 syns.
  •  Skittles Chewies Fruits Sweets Pouch Bag 176g - 9 syns.
  •  Skittles Squishy Cloudz Sour Sweets Fruit Flavoured Sweets Pouch Bag 94g - 5 syns.
  •  Skittles Giants Vegan Chewy Sour Sweets Fruit Flavoured Pouch Bag 141g - 10 syns.
  •  Skittles Vegan Chewy Sweets Tropical Fruit Flavoured Bag 45g - 9 syns.
  •  Skittles Cooler Fruity Ice Cream 3 x 100ml - 5.5 syns.
  •  Skittles Vegan Chewy Sweets Fruit Flavoured Treat Bag 125g PMP £1 - 8.5 syns.

Low Syn Alternatives To Skittles

If you find Skittles to be too high in sugar and syns, we've got some great low-syn alternative sweets for you to check out below for snacking.

  • Rowntree's Fruit Pastilles Vegan-Friendly Sweets Sharing Pouch 150g - 5 syns for 7. 
  •  Starburst Original Fruit Chews Sweets 45g - 9 syns a pack. 
  •  Maynards Bassetts Sweets - 1 syn each. 
  •  Bassetts Jelly babies - 5 syns for 4 sweets. 
  •  Drumstick squashies - 3.5 syns. 
  •  Fruittella Sugarfree Red Berry Mix Fruit Drops 45g - 2 syns. 
  •  Fruit Letters Summer Fruits Chewy Sweets 41g - 1 syn. 
  •  Tesco fruit jellies - 5 syns. 
  •  Aldi Dominion Fruit Chews Sweets 450g - 5 syns for 4. 
  •  Skittles Fruits Sweets Family Size Pouch Bag 196g - 10 syns for 50g.
  •  Opal Fruits Original Retro Sweets 152g - 8 syns a sweet.
  •  Fruittella 11 Mini 140g - 2.5 syns. 
  •  Polo Fruits Sweets Tube 37g - 3 syns.
  •  Starburst Fave Reds Fruit Chews Sweets Treat Bag 141g - 10 syns.

Last Words

To conclude, Skittles are high in syns due to their high sugar content, having around 10 syns for a 45g bag and 3.5 syns for an 18g bag, we, therefore, suggest having these sweets in moderation.

In order to stay on track with syns we recommend weighing out your portion of sweets or checking out some other alternatives such as starburst, we have a syn guide to them here.

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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