This document discusses the importance of minerals for animal nutrition. It outlines both macro and micro minerals, their functions, deficiency symptoms, sources, and potential toxicity issues. The major macro minerals discussed are calcium, phosphorus, salt, potassium, magnesium, and sulfur. The micro minerals outlined are iron, manganese, copper, zinc, molybdenum, selenium, cobalt, iodine, and fluorine. Maintaining proper mineral balances and meeting mineral requirements is essential for animal health and productivity.