Evidence Level
Emerging
While large-scale clinical trials on greens powder blends as finished products are limited, the individual ingredients have substantial research backing. Rao et al. (2009) found that a commercial greens supplement increased antioxidant capacity and reduced lipid peroxidation over 90 days. Spirulina has been extensively studied, with a 2010 systematic review by Deng & Chow confirming its antioxidant, anti-inflammatory, and lipid-lowering properties. Chlorella supplementation has demonstrated heavy metal detoxification capacity and immune modulation in clinical studies. The synergistic effects of combining multiple green superfoods are supported by the food synergy concept, though more research on specific blended formulations is needed.