[Effect of the intake of different doses of trace elements and their combination with other biologically active substances on iron, copper and manganese metabolism in highly qualified athletes].

Investigations conducted on athletes have shown that combinations of trace elements (Fe, Cu and Mn) in biotic doses with vitamins, glutamic acid or dibasol produce a favourable effect on trace element metabolism, and on the body functions. Enrichment of food rations with vitamins only, using no trace elements, drastically increased the secretion of Fe, Cu and Mn from the body. High doses of Fe-containing drugs disturbed Mn balance.