Head-to-head comparison

Chicken Breast (skinless) vs Beef Sirloin Steak (lean): Which Has More Protein?

Chicken Breast (skinless) vs Beef Sirloin Steak (lean) is a genuinely useful comparison because the two differ meaningfully on more than one axis, not just total protein.

Chicken Breast (skinless)

31.0gprotein / 100g

165 cal · 3.6g fat · $ · Quality 0.94

Beef Sirloin Steak (lean)

29.0gprotein / 100g

183 cal · 6.9g fat · $$$ · Quality 0.92

Per 100g, Chicken Breast (skinless) comes in at 31.0g of protein against Beef Sirloin Steak (lean)'s 29.0g, a 2.0g gap that's noticeable across a full day's eating but won't make or break either choice on its own.

Protein quality is essentially matched between the two — both land in a similar tier for amino acid completeness.

Budget-wise, Chicken Breast (skinless) runs meaningfully cheaper per typical serving ($) than Beef Sirloin Steak (lean) ($$$).

Verdict

With protein content this close, cost is the more useful tiebreaker: Chicken Breast (skinless) delivers a similar protein profile to Beef Sirloin Steak (lean) at a noticeably lower price per serving.

Full nutrition comparison

Per 100gChicken Breast (skinless)Beef Sirloin Steak (lean)
Protein31.0g29.0g
Calories165183
Fat3.6g6.9g
Carbs0.0g0.0g
Fiber0.0g0.0g
Quality score0.940.92
Relative cost$$$$
Prep time20 min15 min

Frequently asked

Which has more protein, chicken breast (skinless) or beef sirloin steak (lean)?

Chicken Breast (skinless) has 31.0g of protein per 100g compared to Beef Sirloin Steak (lean)'s 29.0g.

Which is lower in calories?

Chicken Breast (skinless) is lower in calories per 100g, at 165 vs the other's 183.