You may have heard that microgreens are a superfood. It's not fake news. Here's the study from the Journal of Agricultural and Food Chemistry:
"Assessment of Vitamin and Carotenoid Concentrations of Emerging Food Products: Edible Microgreens"
https://pubag.nal.usda.gov/download/59409/PDF
They tested 25 microgreens including arugula, amaranth, radish, cabbage, beet, corn, sweet peas, sorel, wasabi.... to see if microgreens really are more nutritious than their full-grown plant counterparts.
Want the summary?
"In summary, the essential vitamin and carotenoid concentrations of 25 commercially available microgreens varieties have been determined. In general, microgreens contain considerably higher concentrations of vitamins and carotenoids than their mature plant counterparts, although large variations were found among the 25 species tested. Maximum values of vitamin C, viamin K1, and vitamin E were found in red cabbage, garnet amaranth, and green daikon radish microgreens, respectively. In terms of carotenoids, cilantro microgreens showed the highest concentration of lutein/zeaxanthin and violaxanthin and ranked second in β-carotene concentration."
Does that mean healthy?
"Epidemiological studies have shown that fruit and vegetable consumption is associated with reduction in the development of chronic disease, such as cancer and cardiovascular disease.1,2 Diets rich in fruits and vegetables provide an abundance of human bioactive compounds,3 such as ascorbic acid (vitamin C), carotenoids (provitamin A compounds), phylloquinone (vitamin K1), and tocopherols (vitamin E), which are known to have protective benefits against cancers and cardiovascular disease.4 The new Dietary Guidelines for Americans (2010) released by the U.S. Department of Agriculture (USDA) and the Department of Health and Human Services (DHHS) specifically recommends Americans to fill half of their plate with fruits and vegetables because they possess benefits for human health."