Evidence supporting the use of: Spirulina
For the health condition: Failure to Thrive

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Spirulina, a blue-green algae, has been investigated for its nutritional benefits, particularly in the context of malnutrition and Failure to Thrive (FTT) in children. The scientific interest stems from spirulina’s high protein content (approximately 60-70%), abundance of essential amino acids, vitamins (notably B vitamins), minerals (such as iron), and antioxidants. Several small-scale studies, particularly in developing countries, have explored spirulina supplementation in children with moderate acute malnutrition or FTT. For example, randomized controlled trials in countries like India and Burkina Faso have shown that integrating spirulina into children’s diets can result in modest improvements in weight gain, height, and hemoglobin levels compared to controls receiving standard diets or other supplements.

However, while these results are promising, the overall quality of evidence is low to moderate. Most studies have small sample sizes, short durations, and sometimes lack rigorous controls. Spirulina is not yet widely recommended as a first-line treatment for FTT by major health organizations, but it is recognized as a potentially valuable supplementary food—especially where conventional nutritional interventions are limited or unaffordable. In summary, the use of spirulina for FTT is supported by emerging scientific evidence, but more large-scale, high-quality clinical trials are needed to establish efficacy and safety before widespread adoption.

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