Spirulina vs Soybean: Nutrition Comparison
Which is healthier? Compare calories, protein, carbs, and more
Complete side-by-side nutrition comparison per 100g serving | Updated 2026
Which is Healthier?
Soybean is generally healthier
Soybean comes out ahead in this comparison, winning in 3 out of 5 key nutritional categories. It has fewer calories (95 vs 290), less sugar (0.7g vs 2g), less sodium (1mg vs 1048mg)making it the better choice for most health goals.
Quick Summary
Fewer Calories
Soybean
95 kcal
More Protein
Spirulina
57g
More Fiber
Spirulina
3.6g
Less Sugar
Soybean
0.7g
Visual Comparison
Side-by-Side Nutrition Table
Serving Size Comparison
All values above are per 100g. Here's how they compare in common serving sizes:
Spirulina
Soybean
Diet Compatibility
Spirulina
Soybean
When to Choose Spirulina
- ✓Higher in protein (57g vs 11g)
- ✓More fiber (3.6g vs 2.5g)
Common Uses
When to Choose Soybean
- ✓Lower in calories (95 vs 290)
- ✓Lower in carbs (12g vs 24g)
- ✓Less sugar (0.7g vs 2g)
- ✓Lower sodium (1mg vs 1048mg)
Common Uses
Spirulina vs Soybean: Nutritional Analysis
Spirulina is more calorie-dense at 290 calories per 100g compared to 95 for Soybean, a difference of 195 calories. On the protein front, Spirulina delivers more with 57g per 100g versus 11g, which matters for muscle maintenance, satiety, and overall metabolic health. These differences become meaningful when you consider how each food fits into your daily dietary pattern rather than looking at any single nutrient in isolation.
Macronutrient Breakdown
The macronutrient profiles of Spirulina and Soybean tell different nutritional stories. Spirulina provides 24g of carbohydrates, 7g of fat, and 3.6g of fiber per 100g, while Soybean contains 12g carbs, 5g fat, and 2.5g fiber. The higher fiber content in Spirulina supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Spirulina contains 2g while Soybean has 0.7g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.
Key Takeaways
- For weight management: Soybean is the lower-calorie choice at 95 cal/100g, making it more suitable for calorie-controlled diets.
- For muscle building: Spirulina provides more protein (57g/100g), supporting muscle repair and growth.
- For sustained energy: Spirulina offers more fiber (3.6g/100g), which slows digestion and provides steadier energy release.
- Overall: Neither food is universally "better" than the other. The right choice depends on your specific nutritional goals, meal context, and dietary preferences. Both can play a role in a balanced diet.
Frequently Asked Questions
Which has more calories, Spirulina or Soybean?
Spirulina has more calories with 290 kcal per 100g, compared to Soybean with 95 kcal. That's a difference of 195 calories per 100g serving.
Is Spirulina healthier than Soybean?
Based on our nutritional analysis, Soybean is generally the healthier choice, winning in 3 out of 5 key nutritional categories. Soybean has 95 calories, 11g protein, and 2.5g fiber per 100g. However, the best choice depends on your specific dietary goals.
What is the protein difference between Spirulina and Soybean?
Spirulina has more protein with 57g per 100g, compared to Soybean with 11g. Spirulina provides 46.0g more protein per 100g serving.
Which is better for weight loss, Spirulina or Soybean?
For weight loss, Soybean is the better choice with only 95 calories per 100g compared to 290 calories in Spirulina. Spirulina also offers 3.6g of fiber per 100g, which helps you feel fuller longer.
Does Spirulina or Soybean have fewer carbs?
Soybean has fewer carbs with 12g per 100g, compared to Spirulina with 24g. If you're following a low-carb diet, Soybean is the better option with 12.0g fewer carbohydrates.
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About Our Data
All nutrition data in this comparison is sourced from the USDA FoodData Central, the official food composition database maintained by the U.S. Department of Agriculture. Values are based on 100g servings for accurate comparison.
Health Disclaimer: This comparison is for informational purposes only and is not intended as medical or dietary advice. Nutritional needs vary by individual. The best food choice depends on your personal health goals, dietary requirements, and preferences. Consult a healthcare provider or registered dietitian for personalized nutrition guidance.