Medically, it has the effects of relieving cough, relieving asthma, preventing diseases, moistening intestines and relaxing bowels. In eating, it is also a delicious food, which can be used to make pickles, fructose and canned food, such as almond tea, almond dew, almond cheese, almond cream, almond powder and almond cake. However, almonds have certain toxicity and should not be eaten more. According to the determination, children eat about 20 pills at a time and adults eat about 50 pills at a time, which can cause poisoning. The reason of poisoning is that after a large amount of amygdalin enters the human body, it is decomposed into excessive hydrocyanic acid under the action of amygdalase, which makes red blood cells lose their function and damages the respiratory center and vascular movement center. The severity of poisoning and the onset of symptoms are related to the amount of food intake and age. Poisoning symptoms can appear after several minutes or hours, including headache, dizziness, nausea and vomiting, and then lethargy, coma, convulsions and blood pressure drop with the aggravation of hypoxia; In severe cases, they may die of hypoxia and respiratory failure. Therefore, you should pay attention to eating almonds and never eat more.