Pepper is a food-borne stimulant and will not appear on the menu of athletes in the Winter Olympics. In addition, there are 48 common condiments and raw materials such as fragrant leaves in the kitchen, which can't appear. Food-borne stimulants refer to prohibited substances that may be contained in food, medicine and nutrition; Include stimulating ingredients naturally occurring or used or added in common food and health food from production to processing. Naturally occurring stimulating ingredients, such as lotus seeds and alkaloids naturally occurring in lotus seeds, have certain sedative and antiarrhythmic effects; Licorice can play the role of steroid hormone in traditional Chinese medicine; Noraconitine belongs to benzyl isoquinoline alkaloids and exists in plants such as pepper, lotus seed and Sakyamuni.