The blood serves three main functions:Transport. The blood transports gases like oxygen and carbon dioxide to and from the lungs and the rest of the body. The blood also moves nutrients from the digestive tract to the rest of the body, and transports waste products, hormones, and other cells.Protection. The blood contains white blood cells that destroy invading microorganisms, as well as platelet factors to clot the blood and minimize blood loss from an injury.Regulation. The blood helps to regulate your bodys pH, water balance, and temperature.Your blood has a lot of important responsibilities, so its no wonder that people are looking for ways to keep their blood free of wastes and toxins.Blood