Beef Sirloin Steak (lean)
29.0gprotein / 100g183 cal · 6.9g fat · $$$ · Quality 0.92
Beef Liver
26.3gprotein / 100g175 cal · 4.9g fat · $ · Quality 0.9
Beef Sirloin Steak (lean) carries 2.7g more protein per 100g than Beef Liver (29.0g vs 26.3g) — a real but modest edge.
Neither has a meaningful edge on protein quality; they're close enough on amino acid profile that it isn't a differentiator here.
Beef Liver is the more budget-friendly pick ($ vs $$$ for Beef Sirloin Steak (lean)), worth weighing if cost matters more than the other differences here.
Beef Sirloin Steak (lean)'s typical serving also delivers more leucine (2350mg vs Beef Liver's 2050mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.
With protein content this close, cost is the more useful tiebreaker: Beef Liver delivers a similar protein profile to Beef Sirloin Steak (lean) at a noticeably lower price per serving.
Full nutrition comparison
| Per 100g | Beef Sirloin Steak (lean) | Beef Liver |
|---|---|---|
| Protein | 29.0g | 26.3g |
| Calories | 183 | 175 |
| Fat | 6.9g | 4.9g |
| Carbs | 0.0g | 3.9g |
| Fiber | 0.0g | 0.0g |
| Quality score | 0.92 | 0.9 |
| Relative cost | $$$ | $ |
| Prep time | 15 min | 10 min |
Frequently asked
Which has more protein, beef sirloin steak (lean) or beef liver?
Beef Sirloin Steak (lean) has 29.0g of protein per 100g compared to Beef Liver's 26.3g.
Which is lower in calories?
Beef Liver is lower in calories per 100g, at 175 vs the other's 183.