It is well-known that planned conception doesn't occur in approximately 15% of the marriages. Causes happening in male organisms are about half of the cases and in female organisms too. Spermatozoa are subjected to numerous harmful effects throughout men’s lives, such as environmental or lifestyle factors. It can often be beneficial even for healthy men to follow a diet that helps their bodies' cells maintain their biological functions. FER14 EXTRA® is a food supplement that contains vitamins, amino acids, trace elements, and minerals in a concentrated form. They are involved in biological functioning of spermatozoa, therefore FER14 EXTRA® supports their appropriate functioning.These substances: amino acids are arginine, taurine, vitamins are Vitamin B6, folic acid, beta-carotene, vitamin B12, vitamin C, vitamin E and the very important D3, the trace elements are zinc, selenium, and mineral and other supplements are magnesium, L-carnitine and coenzyme Q10. It is a scientifically proven fact that sperm formation and maturation takes about three months, so the recommended amount of FER14 EXTRA® is 2 × 1 pill a day for at least three months, however, taking it constantly can make the condition of human organism even better and better. Selection of ingredients and quantification has been done accurately and reliably as it is supposed to be. This product can supply all vitamin an mineral needs of an adult considering that some of the ingredients get into the body by diverse nutrition as well. International medical journal claims that FER14 EXTRA® has positive impacts on fertilizing ability of men.