Spirulina (dried powder)
1 tbsp (7g)Protein per 100g57.5g
Calories per 100g290
Fat per 100g8.0g
Carbs per 100g23.9g
Fiber per 100g3.6g
Leucine (per serving, est.)280mg
Typical cost$$$$$
Quality 0.75
lit_estimate, complete but low-methionine profile
veganvegetariangluten-free
Why Spirulina (dried powder) shows up in protein-forward diets
The 57.5g-per-100g headline number is real but misleading in practice — nobody eats 100g of spirulina, a realistic 1 tbsp serving delivers about 4g of protein, closer to a bite of chicken than a scoop of whey.
Serving-size math
A 1 tbsp (7g) portion delivers 4.0g of protein and roughly 20 calories. Scaled per 100 calories, that works out to 19.83g of protein — useful for comparing against other foods on a calorie-matched basis rather than a weight-matched one.
Prep tip
Start with 1/2 tsp in smoothies — the flavor is strong and grassy, and most people need to work up a tolerance.
Best for
- micronutrient boost, not primary protein source
Frequently asked
How much protein is in spirulina (dried powder)?
57.5g per 100g, or 4.0g per 1 tbsp (7g).
Is spirulina (dried powder) a complete protein?
It's a moderate-quality protein source: lit_estimate, complete but low-methionine profile.