Spirulina is a complete source of protein
8.0Strong
evidence
evidence
The Claim
Many believe that spirulina provides all essential amino acids in sufficient quantities, making it a perfect protein source comparable to meat or eggs. This myth often arises from its high protein content by weight.
Origin
This misconception is commonly spread by marketing materials and health blogs that highlight spirulina's protein content without context.
What Science Says
While spirulina does contain all essential amino acids, the amounts of some are lower compared to animal proteins. A study in the 'Journal of Agricultural and Food Chemistry' highlights its amino acid profile, but suggests that it should be combined with other protein sources to meet dietary needs fully. Spirulina's protein quality is generally lower than that of eggs or meat.
Verdict
Misleading
Sources
- PMID:26262693 NUTRITIONAL AND TOXICOLOGICAL ASPECTS OF SPIRULINA (ARTHROSPIRA).
- PMID:38908124 Partial substitution of soybean meal with microalgae meal (Arthrospira spp. - Spirulina) in grower and finisher diets for broiler chickens: implications on performance parameters, footpad dermatitis occurrence, breast meat quality traits, amino acid digestibility and plasma metabolomics profile.
- PMID:32238318 Role of light emitting diode (LED) wavelengths on increase of protein productivity and free amino acid profile of Spirulina sp. cultures.