WellByNumbers.

Frosted Flakes vs Corn flakes

Both count toward 30 plants a week.

Frosted FlakesCorn flakes
Protein · per 100 g4.2 g5.9 g
Carbs · per 100 g90.2 g88.0 g
Fat · per 100 g0.9 g0.9 g
Fiber · per 100 g1.2 g2.7 g
Energy · per 100 g389.0 kcal384.0 kcal
Protein · per 100 kcal1.1 g1.5 g
To hit 30 g protein706 g · 2746 kcal508 g · 1953 kcal

The same three numbers, drawn

Protein / 100 g4.25.9Fiber / 100 g1.22.7Protein / 100 kcal1.11.5Frosted FlakesCorn flakes

What 30 g of protein looks like on a plate

706 gFrosted Flakes2746 kcal rides along508 gCorn flakes1953 kcal rides alongsquare area drawn to scale · grams needed for 30 g protein

Where the calories come from

4%carbs 94%2%
6%carbs 92%2%

The one-line verdict: Corn flakes delivers 1.4× the protein per calorie of Frosted Flakes (1.5 g vs 1.1 g per 100 kcal).

More protein / 100 g: Corn flakesMore fiber / 100 g: Corn flakesLighter per 100 g: Corn flakesSmaller 30 g portion: Corn flakes

Swap in your own pair

Bold marks the better side of each row. "Per 100 kcal" answers the density question — which food delivers more protein for the energy it costs. Portion row is computed live from the same USDA base values shown on each food page.