You must choose according to different ages. Men over 40 years old can choose health care products for preventing and regulating blood pressure and blood lipid, such as spirulina, sea buckthorn oil capsules and seal oil capsules. Because people start to reduce exercise and gain weight in middle age, they are prone to high blood pressure and hyperlipidemia. When a 40-year-old woman begins to enter menopause, she can choose menopausal health care products, such as sheep placenta and ovarian care capsules. Older people over 60 can choose supplements to regulate blood pressure and blood lipids, such as natto red yeast, ginkgo biloba extract, seabuckthorn oil and other capsules. It is suggested that the diet should be diversified. As long as you can eat a normal diet and eat digestible and nutritious food, you can meet the needs of your body. For example, eat vegetables and fruits properly, supplement vitamins, nuts with various trace elements, and a small amount of meat. Rheumatism keeps warm and avoids catching a cold. Eating fish is good for the health of the elderly. Because the fatty acid contained in fish fat is the highest substance to promote brain development, it helps to reduce inflammation and protect the blood supply of the brain. 2, the role of vitamin A Vitamin A is a fat-soluble vitamin, which has the function of heat preservation and cold dispelling, and can enhance the resistance of the elderly, making the elderly less susceptible to diseases such as colds and frostbite.