Cornflakes
Poor — Cornflakes works against fat-burning.
One of the highest-GI breakfast foods; almost no fiber to slow it down.
The breakdown
Per serving: 1 cup (30g)
Glycemic index 81 · Carbs 24g · Fat 0g · Processing ultra-processed
What this means for fat-burning
A FatTonic Score of 35 places cornflakes in the Poor band. The score is dominated by its glycemic load of 19 (moderate — a noticeable but manageable rise).
Being ultra-processed, it is also easy to overeat.
See how your whole day scores — free Metabolic Score →Frequently asked questions
Does cornflakes spike insulin?
Cornflakes has a glycemic load of 19 and a FatTonic Score of 35 out of 100, which means it works against fat-burning. One of the highest-GI breakfast foods; almost no fiber to slow it down.
Is cornflakes good for fat loss?
With a FatTonic Score of 35/100 (Poor), cornflakes works against fat-burning. One of the highest-GI breakfast foods; almost no fiber to slow it down.
Better swaps
More grains & bread
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