WellByNumbers.
GLP-1: this is one 30 g meal-block →

How much rice krispies for 30 g of protein?

About 1500 kcal of rice krispies gets you there.

400 gfor 30 g protein
1500 kcalthose grams cost
7.5 gprotein per 100 g
#201of 233 foods by protein per calorie · full ranking
TargetRice KrispiesCalories
20 g protein267 g1000 kcal
25 g protein333 g1250 kcal
30 g protein400 g1500 kcal
35 g protein467 g1750 kcal
40 g protein533 g2000 kcal

Common questions

How much rice krispies do I need for 30 g of protein?

400 g of Rice Krispies, which carries about 1500 kcal. Rice Krispies holds 7.5 g protein per 100 g.

Why does the same 30 g cost different calories across foods?

Because protein density differs. The comparison pages on this site show the same math across foods, so you can see which sources deliver protein cheapest in calories.

Method

Grams = target ÷ (g protein per 100 g) × 100, USDA FoodData Central base values, cooked weights where cooking applies.

See all foods on one chart