Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Algal protein, derived from sources such as spirulina, chlorella, and other microalgae, has been investigated for its potential in supporting or treating wasting (severe weight loss and muscle wasting, often associated with malnutrition or chronic diseases). Scientific validation for the use of algal protein in this context stems primarily from its nutrient density and bioavailability rather than from a long historical tradition. Microalgae are a rich source of high-quality protein, essential amino acids, vitamins (such as B12), minerals (such as iron), and antioxidants. Several studies have demonstrated that supplementation with spirulina or chlorella can improve nutritional status, promote weight gain, and increase protein intake in malnourished populations, especially in resource-limited settings.

For example, clinical trials have shown that spirulina supplementation in undernourished children can lead to significant improvements in weight and markers of nutritional status. Similarly, animal studies suggest that algal proteins support muscle mass retention and recovery from protein-energy malnutrition. However, while these findings are promising, the overall body of evidence is moderate and not yet robust enough for universal clinical recommendations, as many studies are small-scale, short-term, or not conducted in diverse populations.

In summary, the use of algal protein for treating or supporting wasting is justified by scientific evidence, mainly related to its nutritional profile and some positive intervention studies, but the evidence is not yet extensive or definitive.

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