Head-to-head comparison

Beef Liver vs Tofu (firm): Which Has More Protein?

Beef Liver vs Tofu (firm) is a genuinely useful comparison because the two differ meaningfully on more than one axis, not just total protein.

Beef Liver

26.3gprotein / 100g

175 cal · 4.9g fat · $ · Quality 0.9

Tofu (firm)

17.3gprotein / 100g

144 cal · 8.7g fat · $ · Quality 0.91

Beef Liver is in a different weight class here, protein-wise: 26.3g per 100g vs Tofu (firm)'s 17.3g, a 9.0g difference that's more about food category than food quality.

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

Cost is roughly comparable between the two ($), so budget isn't the deciding factor here.

The dietary-restriction question settles this for a lot of people before the macros even matter: Tofu (firm) is vegan, Beef Liver isn't.

Beef Liver's typical serving also delivers more leucine (2050mg vs Tofu (firm)'s 1300mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.

Verdict

The real deciding factor is dietary fit, not macros: choose Tofu (firm) if you need it to be plant-based, choose Beef Liver otherwise — the protein numbers are close enough that diet compatibility should lead.

Full nutrition comparison

Per 100gBeef LiverTofu (firm)
Protein26.3g17.3g
Calories175144
Fat4.9g8.7g
Carbs3.9g2.8g
Fiber0.0g2.3g
Quality score0.90.91
Relative cost$$
Prep time10 min15 min

Frequently asked

Which has more protein, beef liver or tofu (firm)?

Beef Liver has 26.3g of protein per 100g compared to Tofu (firm)'s 17.3g.

Which is lower in calories?

Tofu (firm) is lower in calories per 100g, at 144 vs the other's 175.