It is the product of the combination of traditional Chinese medical knowledge and culinary experience, i.e., “medicine in food”, in which medicine is used as food and food is given medicinal use. And can prevent and cure diseases, health care and health, and prolong life. There are many benefits of medicinal food to the organism, and the family can make medicinal food for the whole family, but the effects and side effects are different for young and old. So, how do young children, young people and the elderly choose medicinal food? Infants and children are not recommended to use medicinal food. During childhood, the body is in the growth and development stage, belonging to the infantile Yin and Yang body, the internal organs are delicate, easy to deficient and real. Easy to appear heat, Yang evidence. Children and adolescents, and compared with adults, children in the growth period need to draw a lot of nutrients, their spleen and stomach function is often inadequate, so the principle of children’s diet should reflect the diversity of the selection of ingredients less warm, nutritious, easy to digest, should pay attention to care for the spleen and stomach, in order to make up for the nature of the day. During youth, the body’s internal organs are in full function, and all tissues and organs are in their prime. The middle age is a turning point from bloom to decline, the function of the internal organs gradually from strong to weak, and this period of modern people shouldering the burden of work and life, often physical exhaustion, or busy with work, or busy socializing, negligent maintenance. Chinese medicine believes that overworking the body will hurt the lungs, the long-term past is less qi power failure, visceral functions are impaired, accelerating aging; and overworking the heart is the internal depletion of Yin and blood, memory loss, reduced sexual function, lack of qi and blood, over time the dysfunction of the visceral organs, leading to a variety of diseases. The physical condition of middle-aged people is not as good as that of young people, so Chinese medicine pays great attention to the health care of middle-aged people, through the use of medicinal food for the kidneys, spleen, liver and other effects, can be beneficial to the spleen, anti-fatigue, skin beauty, increase intelligence, anti-premature aging, blood, liver and kidney role. The function of the internal organs of the elderly gradually declines, the lack of Qi, blood and fluids, coupled with some of the roots of disease or bad habits left behind in the young and strong years, the body has different degrees of discomfort or disease, in Chinese medicine pathology presents a mixture of deficiency, mainly deficiency, the heart, liver, spleen, lungs, kidney deficiencies in the five organs. The symptoms include decreased physical strength, memory loss, dizziness, insomnia, weakness of the back and legs, abdominal distension, and constipation. The dietary treatment should be based on nourishment, as there are also actual evidence, blood vessels are not smooth, phlegm and dampness are blocked internally, and osteophytes and arteriosclerosis appear. The elderly people’s nourishment is different from the young people, not a moment to achieve the curative effect, should be long-term persistence, to light, cooked soft, easy to digest, absorption, can be appropriate to take more with the spleen and appetite, fill the kidneys, fill the essence, benefit the blood, blood circulation and life prolonging effect of medicine porridge, medicine soup and other meals.