Dried blackberry does not have absolute side effects, which need to be analyzed in the context of individual physique and the amount of consumption. Dried blackberry is the food obtained after drying fresh blackberry, its nutritional value, taste will be slightly inferior to fresh blackberry, but does not significantly reduce its food value. Dried blackberry is rich in glucose, fructose, sucrose, vitamins, minerals, butyric acid pectin, cellulose, anthocyanins, carotene and other ingredients, for no special circumstances of the population, the appropriate consumption does not lead to obvious side effects, no need to worry about it excessively, about 10g per day is safe. However, if the dried black mulberry has been moldy, or exposed to toxic and harmful substances, consumption may lead to diarrhea, nausea, vomiting, panic and other food poisoning symptoms. Part of the population, may be dry black mulberry in some of the components of the uncomfortable reaction, that is, common allergic reaction, can also cause the digestive tract, skin and other parts of the discomfort, but the above phenomenon does not belong to the side effects of the mulberry, need to be treated scientifically. In daily life, it is recommended to buy dried blackberry produced by regular channels and avoid consuming too much at one time.