(1) allergic persons. That is, people who often eat seafood allergies or frequent drug allergies. Because royal jelly contains hormones, enzymes, and heterosexual proteins. (2) long-term suffering from hypotension and hypoglycemia. Royal jelly contains acetylcholine-like substances, and acetylcholine has a role in blood pressure lowering and blood sugar lowering. (3) Intestinal disorders and diarrhea. Due to royal jelly can cause a strong contraction of the bowel, induced intestinal dysfunction, leading to diarrhea, constipation embolism. (4) Where the liver Yang Sheng Sheng and damp heat block, or high fever, vomiting blood, jaundice liver disease, should not take royal jelly. Identification and purchase For the puree, only experienced acquisitions can be identified by experience; JIANGSU CLS TECHNOLOGY CORP.LTD , https://www.js-cls.com