Beef Sirloin Steak (lean)
29.0gprotein / 100g183 cal · 6.9g fat · $$$ · Quality 0.92
Lamb (leg, roasted)
25.0gprotein / 100g258 cal · 16.0g fat · $$$$ · Quality 0.91
There's a meaningful protein-density gap here: Beef Sirloin Steak (lean) runs 29.0g per 100g against Lamb (leg, roasted)'s 25.0g, roughly 4.0g more per equal weight.
Protein quality is essentially matched between the two — both land in a similar tier for amino acid completeness.
Budget-wise, Beef Sirloin Steak (lean) runs meaningfully cheaper per typical serving ($$$) than Lamb (leg, roasted) ($$$$).
Beef Sirloin Steak (lean)'s typical serving also delivers more leucine (2350mg vs Lamb (leg, roasted)'s 1980mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.
These two are closer than the comparison headline suggests. Either Beef Sirloin Steak (lean) or Lamb (leg, roasted) works well in most contexts — let cost, prep time, and personal preference decide rather than the macros.
Full nutrition comparison
| Per 100g | Beef Sirloin Steak (lean) | Lamb (leg, roasted) |
|---|---|---|
| Protein | 29.0g | 25.0g |
| Calories | 183 | 258 |
| Fat | 6.9g | 16.0g |
| Carbs | 0.0g | 0.0g |
| Fiber | 0.0g | 0.0g |
| Quality score | 0.92 | 0.91 |
| Relative cost | $$$ | $$$$ |
| Prep time | 15 min | 90 min |
Frequently asked
Which has more protein, beef sirloin steak (lean) or lamb (leg, roasted)?
Beef Sirloin Steak (lean) has 29.0g of protein per 100g compared to Lamb (leg, roasted)'s 25.0g.
Which is lower in calories?
Beef Sirloin Steak (lean) is lower in calories per 100g, at 183 vs the other's 258.