text: Manganese is found in leafy green vegetables, fruits, nuts, cinnamon and whole grains.  The nutritious kernel, called wheat germ, which contains the most minerals and vitamins of the grain, has been removed from most processed grains (such as white bread).  The wheat germ is often sold as livestock feed.  Many common vitamin and mineral supplement products fail to include manganese in their compositions.  Relatively high dietary intake of other minerals such as iron, magnesium, and calcium may inhibit the proper intake of manganese.