The danger of a big meal savior is that it contains illegal drug ingredients: sennoside and sibutramine. Both sennoside A and sennoside B belong to laxatives and are extracted from Senna leaves of Leguminosae. In Pharmacopoeia, Senna leaves have the functions of purging heat, inducing stagnation, relaxing bowels and diuresis. In the Notice of the Ministry of Health on Further Standardizing the Management of Health Food Raw Materials, Senna leaves can be used as health food and must be labeled. Many documents show that Senna leaves have a strong effect, and long-term use of Senna leaves can easily lead to drug dependence and functional damage in constipation patients. Abuse may even lead to liver injury and acute intestinal obstruction.