Like iron, manganese can be helpful with some types of asthma, where lung capacity measurably improvers proportional to manganese intake. Extra supplementation of manganese may be helpful in some cases of carpal tunnel syndrome, deafness, epilepsy, infertility, and lack of libido in both sexes. In addition, individuals who regularly dislocate joints, frequently present with insufficient manganese levels, so normalizing manganese in those cases will permanently resolve that problem. On the other hand, high manganese levels increase the risk for tendon ligament tears... Full Text