Spirulina Powder
Blue-green algae and one of the superfoods richest in micronutrients, complete protein and iron. Because it is used in teaspoon amounts (about 3 to 5 grams), its carbohydrate effect is negligible and the glycemic index does not apply.
Glycemic index
Glycemic load
Calories
Protein
💡 Smart Nutritional Guidance
Consumption advice
Add a teaspoon of spirulina powder to your morning green smoothie or a glass of water with a squeeze of lemon to support your energy through the day.
Best preparation methods
Mixing spirulina with citrus juice (such as lemon or orange) helps mask its distinctive earthy, marine taste and boosts the absorption of its plant iron.
Important Nutritional Note
It is rich in the unique antioxidant phycocyanin and in chlorophyll; if you have a thyroid disorder or an autoimmune disease, ask your doctor before using it daily in large amounts.
Nutrition facts
| Nutrient | Per 100 g | Per typical portion (5 g) |
|---|---|---|
| Calories | 290 kcal | 14.5 kcal |
| Protein | 57 g | 2.9 g |
| Carbohydrate | 24 g | 1.2 g |
| Available carbohydrate | 20.4 g | 1 g |
| Fat | 8 g | 0.4 g |
| Dietary fibre | 3.6 g | 0.2 g |
The typical portion is approximate, for comparison purposes.
Comparison & smarter alternatives
It has 290 kcal per 100 g, ranking 3 of 7 in Special ingredients & supplements (lowest first).
Related foods from the same family:
Frequently asked questions
Is Spirulina Powder good for weight loss?
It can be a useful part of a weight-loss plan because it provides 19.7 g of protein per 100 kcal, and protein supports fullness. A 5 g portion gives 14 kcal.
How does Spirulina Powder affect blood sugar?
Spirulina Powder contains only 20.4 g of available carbohydrate per 100 g, so the glycemic index does not apply and its direct effect on blood sugar is minimal. The meal’s effect depends on what you eat with it, such as bread, rice or sweetened sauces.
What is the nutritional value of a typical portion of Spirulina Powder?
A typical 5 g portion of Spirulina Powder provides about 14 kcal, 2.9 g protein, 1.2 g carbohydrate, 0.4 g fat and 0.2 g fibre.
Reviewed by the WiBo Health medical team · Last reviewed 13 October 2026
Disclaimer: This guidance is for nutritional lifestyle orientation and does not constitute a diagnostic medical device under EU Regulation MDR 2017/745.