Gold Standard 100% Casein
What this means
Elite efficiency — 40%+ of calories from protein. Lean meat, whey isolate, low-fat dairy. 80% density puts this in the Platinum tier.
Complete dairy protein (milk/casein), high DIAAS, counts in full.
Note: At 2.3g 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 Optimum Nutrition Gold Standard (whey reference)
| Metric | Gold Standard 100% Casein | Gold Standard (reference) | Δ |
|---|---|---|---|
| Protein / serving | 24g | 24g | 0g |
| Leucine | 2.3g | 2.5g | -0.2g |
| Density | 80% | 80.0% | +0% |
| MPS trigger at 1 scoop? | No | Yes |
Notes
Slow-digesting micellar casein — typical pre-bed pick to extend amino acid release. Leucine 2.3g per labeled aminogram — slightly under the 2.5g MPS trigger per serving so 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.