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. 

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. 

Frosties 

• 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. 

Kelloggs  

• 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.

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.

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.