Head-to-head comparison

Nutritional Yeast vs Mycoprotein (fermented fungal protein): Which Has More Protein?

Nutritional Yeast vs Mycoprotein (fermented fungal protein) is a genuinely useful comparison because the two differ meaningfully on more than one axis, not just total protein.

Nutritional Yeast

50.0gprotein / 100g

325 cal · 5.0g fat · $$$ · Quality 0.8

Mycoprotein (fermented fungal protein)

15.0gprotein / 100g

110 cal · 3.0g fat · $$$ · Quality 0.9

Nutritional Yeast is in a different weight class here, protein-wise: 50.0g per 100g vs Mycoprotein (fermented fungal protein)'s 15.0g, a 35.0g difference that's more about food category than food quality.

Quality flips the other way, though: Mycoprotein (fermented fungal protein) has the stronger amino acid profile (lit_estimate, near-complete fermented protein) versus Nutritional Yeast's lit_estimate, near-complete deactivated yeast protein.

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

Mycoprotein (fermented fungal protein)'s typical serving also delivers more leucine (1150mg vs Nutritional Yeast's 550mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.

Verdict

If raw protein density is what you're optimizing for, Nutritional Yeast wins clearly. Choose Mycoprotein (fermented fungal protein) instead if its lower fat, cost, or prep time matters more to you than the extra grams.

Full nutrition comparison

Per 100gNutritional YeastMycoprotein (fermented fungal protein)
Protein50.0g15.0g
Calories325110
Fat5.0g3.0g
Carbs35.0g6.5g
Fiber20.0g6.0g
Quality score0.80.9
Relative cost$$$$$$
Prep time0 min15 min

Frequently asked

Which has more protein, nutritional yeast or mycoprotein (fermented fungal protein)?

Nutritional Yeast has 50.0g of protein per 100g compared to Mycoprotein (fermented fungal protein)'s 15.0g.

Which is lower in calories?

Mycoprotein (fermented fungal protein) is lower in calories per 100g, at 110 vs the other's 325.