How Many Syns In Frosties? Find Out Here!

Updated on 
29 May, 2022

How Many Syns Are In Frosties Cereal? - Our Guide!

Frosties are a popular breakfast cereal for many of us, but since this cereal is not syn free food on the slimming world you will need to make sure you're tracking the syns. 

Frosties have 6.5 syns a serving making them very high in syns for just 35g, consuming nearly half of your daily 15 syn allowance, so we recommend eating this cereal within moderation. 

How Many Syns In Frosties?

In our guide below, let’s discuss why Frosties are so high in syns, syn values of Frosties and other Kellogg's cereal as well as some low syn alternatives from other brands. 

Why Are Frosties So High In Syns?

At 6.5 syns for a 35g bowl, Frosties are very high in syns, this cereal gets its high syn values from the sugar, having up to 11g in just one bowl due to the frosted coating on the cornflakes. 

You could have up to two bowls of frosties before nearing your allowance limit, however, we would suggest eating them as the occasional treat due to the high sugar content.

Syn Values Of Frosties & Kelloggs

Frosties come in a few different types and serving sizes and Kelloggs have a huge range of cereals on offer, we’ve listed their syn values to help you stay on track below. 


  • Kellogg's Frosties Breakfast Cereal 500g - 6 syns. 
  • Kellogg's Frosties Cereal & Milk Snack Bar 25g - 5 syns. 
  • Kellogg's Frosties Original Cereal 35g - 6.5 syns. 
How Many Syns In Frosties?


  • Kellogg's Corn Flakes 250g - 6 syns. 
  • Kellogg's Crunchy Nut Breakfast Cereal 500g - 6 syns. 
  • Kellogg's Special K Original Breakfast Cereal 500g - 6 syns. 
  • Kellogg's Bran Flakes Breakfast Cereal 750g - 5 syns. 
  • Kellogg's All-Bran Original 750g - 7 syns or healthy extra B. 
  • Kellogg's Coco Pops Cereal 35g - 7 syns. 
  • Kellogg's Fruit 'n Fibre Cereal 500g - 7.5 syns. 
  • Kellogg's Rice Krispies Squares Cereal Bar Marshmallow 28g - 6 syns.
  • Kellogg's Special K Red Berries Cereal 360g - 6 syns. 
  • Kellogg's Coco Pops Snack Bar 20g - 4 syns. 
  • Kellogg's Frosted Wheats Breakfast Cereal 500g - 7.5 syns. 
  • Kellogg's Krave Chocolate Hazelnut Cereal 375g - 7 syns.
  • Kellogg's Rice Krispies Breakfast Cereal 700g - 6 syns. 
  • Kellogg's Crunchy Nut Hazelnut & Chocolate Breakfast Granola 380g - 11 syns.

Low Syn Alternatives To Frosties Cereal

If you find frosties to be too high in syns, you might be looking for a low syn similar alternative, we’ve got some options for you to check out below. 

  • NESTLE Shreddies The Frosted One Cereal 500g - 7.5 syns.
  • Aldi Harvest Morn Frosted Flakes Cereal 600g - 6 syns. 
  • Lucky Charms Cup Frosted Toasted Oat Cereal with Marshmallows 48g - 7.5 syns. 
  • Tesco Frosted Flakes 500g - 6 syns. 
  • Asda Frosted Flakes 500g - 6 syns. 
  • Sainsbury's Frosted Flakes 750g - 6.5 syns. 
  • Golden Country Frosted Flakes 500g - 5.5 syns. 
  • Groovy Food Gluten Free Frosted Flakes 250g - 6 syns. 
  • Morrisons Frosted Flakes 500g - 6 syns. 
  • Co Op Frosted Flakes 500g - 6 syns.
How Many Syns In Frosties?

Final Words

Overall, Frosties are very high in syns, having 6.5 syns a bowl. This is because frosties are high sugar, having up to 11g a serving, to reduce syns we recommend switching to a low syn alternative from our list above or choosing a cereal which counts as your healthy extra B such as Weetabix or all-bran.

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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