Lily is delicate in meat, white in color, delicious and refreshing, slightly bitter, and has good effects of stimulating appetite and assisting digestion. Lily has a high sugar content and a certain amount of protein, so it is called a delicacy. Lily powder, which is made of lily as raw material, is a tribute to the emperors in the past dynasties. At the same time, lily also contains 17 kinds of amino acids needed by human body, such as leucine, aspartic acid, lysine, glutamic acid, glycine and serine, which has high nutritional value. Lily is rich in inorganic salts and potassium, which play an important role in the body's metabolism. The trace elements contained in it have the functions of strengthening physique, improving organ function and resisting aging. Fresh lilies should be large, evenly petalled, thick, white or light yellow. When purchasing, you should also pay attention to eliminating impurities, black petals, rotten hearts or moldy ones. Dried lily should choose dry, impurity-free, fleshy and crystal clear ones. Edible lilies are home-grown, not bitter in taste, and those with wide and thin scales are the best. Medicinal lilies are wild, bitter in taste and small and thick in petals.