It is the best time of the year to take a tonic. There are many ways to take a tonic in winter, and among the many tonic herbs, the most inexpensive and beautiful is jujube, which is very beneficial to health and is an inexhaustible source of health benefits. The folk sayings “eat three dates a day, you’ll never be old” and “if you want good skin, add dates to your porridge” are some exaggerations, but they are a summary of the folk experience of the health benefits of dates. Jujube has been cultivated in China for more than 4,000 years and is one of the “five fruits” (peach, plum, plum, apricot and jujube). According to Chinese medicine, jujube is sweet and warm in nature, which can nourish the spleen and stomach, replenish qi and blood, nourish blood and calm the mind. It is suitable for any deficiency disease, including weakness of the spleen and stomach, lack of qi and blood, fatigue, insomnia and dreaminess, as well as for post-operative tumor and radiotherapy patients. In the winter season, eating more jujubes, whether for the elderly, adults or children, is undoubtedly an economical way to nourish the body. Jujube is rich in protein, fat, crude fiber, sugar, carotene, B vitamins, vitamin C, vitamin P, and calcium, phosphorus, iron and cyclic adenosine phosphate, so it is known as a natural vitamin pill. The vitamin content of jujube is not only varied but also high, among which the vitamin C content is among the highest in fruits, 13 times more than that of oranges, so it has anti-aging and beauty effects. The cyclic adenosine phosphate contained in jujube is an essential component of human cell metabolism, which can eliminate fatigue, improve myocardial nutrition, improve microcirculation, and has a good effect on the prevention and treatment of cardiovascular system diseases. It can also improve immunity and inhibit cancer cell division, which has a strong anti-cancer effect. Jujube is known for its high sugar content, with fresh jujube containing more than 20% sugar and dried jujube reaching 60%-70%, although some are oligosaccharides, but diabetic patients should not eat more, there is also phlegm and dampness or internal heat in obese people also avoid eating more often.