The toxicity of bitter almond comes from amygdalin and amygdalase, and hydrocyanic acid produced after contact with water is the "culprit" of poisoning. This substance can block the respiratory chain of cells. The amygdalin contained in every 100g bitter almond can be interpreted as releasing hydrocyanic acid100 ~ 250mg, and 60mg hydrocyanic acid can kill people. Therefore, if you eat untreated bitter almonds, it is very risky.
Adults can be poisoned by taking 40~60 pills of raw bitter almond once, and 50~ 100 pills can be fatal.