Spirulina (dried powder)
57.5gprotein / 100g290 cal · 8.0g fat · $$$$$ · Quality 0.75
Nutritional Yeast
50.0gprotein / 100g325 cal · 5.0g fat · $$$ · Quality 0.8
Spirulina (dried powder) delivers a clearly higher protein density than Nutritional Yeast — 57.5g vs 50.0g per 100g, a gap of 7.5g that adds up fast across multiple servings.
Nutritional Yeast pulls ahead on protein quality specifically (lit_estimate, near-complete deactivated yeast protein), even in categories where Spirulina (dried powder) wins on raw grams.
Nutritional Yeast is the more budget-friendly pick ($$$ vs $$$$$ for Spirulina (dried powder)), worth weighing if cost matters more than the other differences here.
Nutritional Yeast's typical serving also delivers more leucine (550mg vs Spirulina (dried powder)'s 280mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.
If raw protein density is what you're optimizing for, Spirulina (dried powder) wins clearly. Choose Nutritional Yeast instead if its lower fat, cost, or prep time matters more to you than the extra grams.
Full nutrition comparison
| Per 100g | Spirulina (dried powder) | Nutritional Yeast |
|---|---|---|
| Protein | 57.5g | 50.0g |
| Calories | 290 | 325 |
| Fat | 8.0g | 5.0g |
| Carbs | 23.9g | 35.0g |
| Fiber | 3.6g | 20.0g |
| Quality score | 0.75 | 0.8 |
| Relative cost | $$$$$ | $$$ |
| Prep time | 0 min | 0 min |
Frequently asked
Which has more protein, spirulina (dried powder) or nutritional yeast?
Spirulina (dried powder) has 57.5g of protein per 100g compared to Nutritional Yeast's 50.0g.
Which is lower in calories?
Spirulina (dried powder) is lower in calories per 100g, at 290 vs the other's 325.