Eating clams can supplement protein, minerals and so on. Clam meat flavorful, nutritious, high protein content, rich in a variety of amino acids needed by the human body; low fat content, high unsaturated fatty acids, easy to be digested and absorbed by the human body, as well as a variety of vitamins and medicinal ingredients. Can be used as human nutrition, green food. Clams are often eaten food, generally not poisoned, if placed for too long will release a toxin, such poisoning is very rare. People who eat such toxin-containing clams will appear neurotoxic symptoms, the performance of the whole body muscle paralysis, and finally respiratory muscle paralysis caused by respiratory arrest, there is no specific antidote. Therefore, they should not be eaten if they have been left for too long.