Tapioca is not toxic. Tapioca is dried and powdered cassava finished product, the raw material is bitter cassava, but the toxins in the process disappeared, the market as a food sold tapioca is no toxins can be eaten without fear, but as a precautionary measure, pregnant women and children should not consume food made from tapioca. Tapioca also has cyanogenic glycosides, which can be decomposed into hydrocyanic acid, which has a toxic effect on the human body. The main cause of human hypoxia as well as cause damage to the nervous system, the patient will appear skin mucous membrane cherry red state, and then appeared mouth and tongue numbness, vision, limb weakness, paralysis and so on. Eating tapioca starch caused by poisoning should immediately go to the hospital for treatment, in the hospital mainly through oxygen and infusion treatment, can use 6542 and other vasodilators to promote microvascular blood circulation, eliminating the symptoms of hypoxia. At the same time, you can supplement the use of other medicines to enable patients to recover.