Moisture, protein, vitamins and some trace elements are closely related to lens metabolism, supplemental protein, the cornea, lens and retina of the eye need protein and vitamin A, the lack of which will cause corneal lesions, cataracts, night blindness and other eye, gradually develop the habit of eating lean meat, fish, eggs, and more dairy and soybean products, because the protein in this is rich and good quality; in addition to often Supplement cod liver oil pills, but also often eat some chicken liver, lamb liver, pig liver, carrots, parsley, rape, spinach and other food oils, because vitamin A has to be dissolved in fat to be absorbed. Older people have a reduced overall intake of nutrients due to the degeneration of physiological functions, including tooth loss, loss of appetite, and reduced digestive and absorption functions. Therefore, elderly people should usually consume more foods rich in the above vitamins. You can also take some additional vitamin nutritional preparations to fully replenish your body’s daily nutrient requirements and bring a brighter tomorrow for yourself.