Medically, it has the effects of relieving cough, relieving asthma, preventing diseases 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, almond cake and so on. 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 a large amount of amygdalin is decomposed into excessive hydrocyanic acid under the action of emulsin, 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 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; Severe cases may die of hypoxia and respiratory failure. So be careful when eating almonds, and don't eat too much.