WellByNumbers.

Froot Loops vs Cheerios (plain)

Both count toward 30 plants a week.

Froot LoopsCheerios (plain)
Protein · per 100 g3.5 g12.4 g
Carbs · per 100 g86.0 g73.2 g
Fat · per 100 g1.2 g6.6 g
Fiber · per 100 g2.0 g10.1 g
Energy · per 100 g374 kcal372.0 kcal
Protein · per 100 kcal0.9 g3.3 g
To hit 30 g protein857 g · 3206 kcal242 g · 900 kcal

The same three numbers, drawn

Protein / 100 g3.512.4Fiber / 100 g2.010.1Protein / 100 kcal0.93.3Froot LoopsCheerios

What 30 g of protein looks like on a plate

857 gFroot Loops3206 kcal rides along242 gCheerios900 kcal rides alongsquare area drawn to scale · grams needed for 30 g protein

Where the calories come from

4%carbs 93%3%
protein 12%carbs 73%fat 15%

The one-line verdict: Cheerios (plain) delivers 3.6× the protein per calorie of Froot Loops (3.3 g vs 0.9 g per 100 kcal).

More protein / 100 g: CheeriosMore fiber / 100 g: CheeriosLighter per 100 g: CheeriosSmaller 30 g portion: Cheerios

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.