Animal · red meat
Beef Sirloin (lean)
Beef Sirloin (lean) provides 33.9 g of protein per 100 g (33.9 g per typical serving).
33.9gprotein / 100 g
- Per serving
- 33.9 g (1 palm · 100 g)
- Calories
- 206 kcal / 100 g
- Protein density
- 16.5 g / 100 kcal
PDCAAS
0.95
Scale 0–1 (capped at 1.0)
DIAAS
91%
High quality
Leucine
2.9 g
2.9 g per serving
Digestion
Slow
Best: Between meals / pre-sleep
Limiting amino acid
None (complete protein)
All 9 essential amino acids covered
Nutrition per 100 g
- Protein 33.9 g 65% kcal
- Fat 8 g 35% kcal
- Carbs 0 g 0% kcal
| Calories | 206 kcal |
|---|---|
| Leucine | 2,900 mg (8.6% of protein) |
| Lysine | 2,700 mg |
| Typical serving | 1 palm (100 g) |
Leucine threshold
About 2.5–3 g of leucine per meal maximally switches on muscle protein synthesis.
2.5 g
One serving (1 palm) = 2.9 g leucine
One serving reaches the leucine threshold on its own.
Pair it with
- Vegetables & whole grainsAlready a complete protein. Pair for fiber and micronutrients.
- Rice, potatoes or quinoaCarbohydrates help refuel after training.
Cost & footprint
- Cost per gram of protein
- $0.052
- Cost for 30 g protein
- ≈ $1.56
- Carbon footprint
- 86.9 kg CO₂e / kg
LowHigh
US retail estimates; prices and emissions vary by region and producer.