Manganese is a mineral found in green leafy plants, nuts, pineapple, seeds, wheat and tea, raisins, egg yolks, ginseng, hops, raspberry and many other plants. It is needed for the growth and maintenance of your skin, bone, joints, and cartilage. Manganese is important for the metabolism of fat and protein and it helps to maintain proper blood sugar levels in your body. Its also needed for the functioning of the nervous system. You could say...