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Evidence-Based Supplement Research
Evidence-Based Supplement Research
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Spirulina and Reduced Body Weight

Research synthesisLow evidenceSmall effect3 studies · 2 beneficial · 1 neutral · 0 harmful

Across 3 studies, 2 reported beneficial small-sized effects on body weight reduction, while 1 neutral study found no statistically significant effect in children and adolescents. The two beneficial meta-analyses in adults showed small but significant reductions (e.g., −0.30 SMD and −1.78 kg). Evidence is based on systematic reviews and meta-analyses, with no consistent dose or form data reported.

  • Studied populations: overweight and obese adults, general adults (>18 years)

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. One meta-analysis in children and adolescents found no significant effect, suggesting potential population-specific differences. Doses, forms, and study durations were not consistently reported across studies, limiting practical guidance.

Generated May 12, 2026
3 of 3 papers
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