Providing the world population with high-quality and functional food products is one of the main tasks of modern scientists. The introduction and subsequent cultivation of new and rare crops makes it possible to expand the diet. Stachys sieboldii Mig, or stakhys, is a vegetable plant with medicinal properties. Of particular value is the underground part of the plant, its nodules. But even the leaves accumulate microelements, antioxidants and phenolic compounds. © 2021 Institute of Physics Publishing. All rights reserved.