The protein content is more than 10% (the protein content of the Maca variety near Lake Juning is more than 14%), 59% carbohydrates; 8.5% fiber, rich in zinc, calcium, iron, titanium, rubidium, potassium, sodium , copper, manganese, magnesium, strontium, phosphorus, iodine and other minerals, and contains vitamins C, B1, B2, B6, A, E, B12, B5, the fat content is not high but mostly unsaturated fatty acids, linoleic acid The content of and linolenic acid is more than 53%, and the natural active ingredients include alkaloids, glucosinolates and their decomposition products benzyl isothiocyanate, sterols, polyphenols, etc.