Special K
Special K Special K Protein Cereal
35g serving · 120 kcal · 10g protein
Gold tier
Complementary Added sugar Protein Density
33.3%
of calories from protein
8.3g protein per 100 cal
Leucine: 0.7 g per serving
What this means: High efficiency — 25–39% of calories from protein. Greek yogurt, chicken breast, most protein bars. 33.3% puts this in the Gold tier — a solid high-protein pick — good for everyday targets.
How it ranks in cereal
More efficient than 22% of cereal
By protein per 100 cal · vs. other cereal in our database
Percentile by protein per 100 cal vs. other cereal in our database. See the methodology .
Nutrition facts
| Serving size | 35 g |
|---|---|
| Calories | 120 kcal |
| Protein | 10 g |
| Protein per 100 cal | 8.3 g |
| Carbohydrates | 22 g |
| Fat | 1.5 g |
| Sugar | 7 g |
| Fiber | 7 g |
| Sodium | 110 mg |
| Leucine | 0.7 g |
Per 35g serving. See the methodology for how Protein Density is calculated.
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% of calories from protein
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Magic Spoon
Cocoa Cereal
37.1%
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% of calories from protein
13g protein
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Magic Spoon
Frosted Cereal
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% of calories from protein
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Magic Spoon
Fruity Cereal
37.1%
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% of calories from protein
13g protein
140 kcal
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Source: Manufacturer label.
Reference ID: special-k-protein.
Last verified 2026-05-17.
Always check the on-pack label — manufacturers update formulations.
Rank 8 of 10 by protein density
Step through the ranking
Magic Spoon Fruity Cereal 37.1% Magic Spoon Peanut Butter Cereal 34.7%
Special K Special K Protein Cereal 33.3%
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