1. The elderly should consume more leafy green vegetables and whole grains to supplement calcium: Elderly individuals often suffer from calcium deficiency, osteoporosis, and are prone to fractures. Therefore, foods rich in calcium are highly beneficial for middle-aged and older people. Vitamin D is a crucial substance involved in calcium absorption, so the elderly should also persist in obtaining calcium and vitamin D from leafy green vegetables and grains.
2. It is not advisable for the elderly to rely on milk for calcium supplementation: Because milk contains 5% lactose, which is broken down into galactose through the action of lactase. This can easily deposit in the eye's lens, affecting its normal metabolism. Additionally, proteins can easily denature, reducing the lens's transparency, which can trigger or exacerbate cataracts. Yogurt or soy milk can be chosen according to preference.
3. The elderly should not consume too many acidic foods, as they can often alter the body's mineral content, potentially leading to a deficiency of trace elements. A lack of trace elements can lead to the loss of many enzymes and reduce their effectiveness, easily causing obstacles in the synthesis and metabolism of proteins, hormones, and vitamins, leading to diseases such as hypertension, arteriosclerosis, cerebral hemorrhage, coronary heart disease, and tumors.
4. The elderly should eat less or avoid smoked, grilled, fried, high-salt, high-cholesterol, and convenience foods: Because the resistance of middle-aged and elderly people is relatively poor, and their digestive and bodily functions have declined, these foods can be detrimental to health, leading to disease or aggravating existing conditions.
5. Supplementing the diet for the elderly does not necessarily require expensive medicines: Some valuable medicines, besides their main therapeutic effects, also have side effects that should be taken seriously. Therefore, when supplementing in winter, one should take small, long-term doses based on the deficiency of various organs, rather than being inconsistent. Before supplementing, one should first balance the organs and eliminate the underlying causes, and then proceed with supplementation. As long as one follows the principle of "Five grains as the foundation, five fruits as the aid, five vegetables as the supplement, five livestock as the benefit, take them in harmony to nourish the essence and qi," and maintains a nutritionally balanced diet and physical and mental well-being, there is no need for special supplements. In general, from a long-term perspective, dietary supplementation is better than medicinal supplementation.
Cultivating good dietary habits is of great significance for preventing diseases, delaying aging, and aiding in recovery. To achieve a rational diet, the Chinese Nutrition Society has proposed dietary principles: eat a variety of foods, be moderately hungry, use an appropriate amount of oil, combine coarse and fine grains, limit salt, eat less sweets, drink alcohol in moderation, and have reasonable meals.