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Ions are electrically charged particles that form from a gain or loss of one or more electrons. Ions with negative charge are called anion and those with positive charge are called cation. Ions are very important to the human health through their assistance in maintaining homeostasis in the human body. The equation would not balance, if we talk about living things without ions . Therefore, without ions, living things such as human would find it difficult to maintain his body functions. The following are some of the usefulness of ions to human’s health. Ions facilitate digestion of food in the human digestive system. The food that humans eat is of no use if it cannot be broken down to release the proper nutrients that the body need for proper functioning. For catabolism of protein to take place in the stomach, pepsin an enzyme that breaks down protein in th