Royal jelly is generally recommended to be taken twice a day. Royal jelly is a liquid made from the milky white gel secreted by the pharyngeal glands of worker bees and honey. The unique nutrient in royal jelly is rosmarinic acid (10-hydroxy-alpha-decenoic acid), which contains 1.8g of rosmarinic acid per 100g of royal jelly, and has the effect of improving immunity. However, its efficacy is limited, and it cannot replace drugs to treat diseases. It is not recommended for children and teenagers, pregnant women, lactating mothers, or those who are allergic to bee products. When consuming it, it is usually recommended to eat it twice a day, once in the morning and once in the evening. Daily recommended more sports exercise, such as jogging, swimming, basketball, badminton, etc., to enhance their immunity is also helpful.