NOW Sports

Micellar Casein

casein Unsweetened Informed Sport
Platinum tier Complete
Protein / serving
19g
90 kcal · 24g scoop
Leucine
1.81g
Below MPS trigger — try 1.5 scoops (estimated)
Density
84.4%
21.1g per 100 cal

What this means

Elite efficiency — 40%+ of calories from protein. Lean meat, whey isolate, low-fat dairy. 84.4% density puts this in the Platinum tier.

Complete dairy protein (milk/casein), high DIAAS, counts in full.

Note: At 1.81g leucine per single scoop, this product sits below the 2.5g threshold needed to maximally trigger muscle protein synthesis in one serving. Common workarounds: use 1.5 scoops, or combine with another protein source in the same meal (e.g., Greek yogurt, eggs). More on the leucine threshold.

vs Naked Whey (whey reference)

Metric Micellar Casein Naked Whey (reference) Δ
Protein / serving 19g 25g -6g
Leucine 1.81g 2.6g -0.79g
Density 84.4% 83.3% +1.1%
MPS trigger at 1 scoop? No Yes

Notes

Informed Sport certified unflavored micellar casein, no sweetener. Leucine estimated from the dairy factor (~9.5%) — well under the ~2.5g MPS trigger at 1 scoop; 1.5 scoops is the standard pre-bed dose.

Where to buy

Manufacturer page →

Run protein-per-dollar with your actual price to see cost-efficiency.

More casein powders to compare

Last verified 2026-06-03. Leucine value estimated from protein-source factor — see /leucine for methodology.

Rank 13 of 25 by leucine per 25 g protein

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