Zinc is important for many of the bodys functions; in fact, this mineral is absolutely vital for hormonal functions such as insulin, growth hormone , and sex hormones. It is also an important element for regulating metabolism and, consequently, body weight. One function of zinc is sperm production , as research indicates that zinc deficiency causes reduced sperm concentration in semen. Zinc is especially important during the winter as it helps fight colds, flu and nasal infections . It protects cells from oxidative stress and promotes healthy skin, hair and nails . BENEFITS Stimulates growth hormone and testosterone Vital for protein synthesis Contributes to the proper functioning of the immune system Antioxidant action Dosage 1 capsule per day