Proven through clinical trials to be more nutrient dense than their parent vegetables
References
Please see below fact based quotes about micro greens and their references
Sprouts and microgreens are novel functional food sources with great potential for sustainably diversifying global food systems, promoting human health, and facilitating the access of a steadily growing urban population to fresh microscale vegetables. These novel food sources have vivid colours, exciting textures, and diverse flavours and tastes, and they can be purchased here at Hidden Farm or even home-grown for daily harvesting as needed. Furthermore, due to their short growth cycle, these nutrient-dense food sources can be produced with minimal input, without using pesticides; hence, they have low environmental impacts and a broad acceptance among health-conscious consumers. Furthermore, as sprouts and microgreens are usually consumed raw, there is hardly a loss or degradation of heat-sensitive micronutrients or vitamins through food processing.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8877763/?#sec7-plants-11-00571