What are the benefits and contraindications of drinking milk powder for middle-aged and elderly people?
Generally, middle-aged and elderly individuals can benefit from drinking milk powder by supplementing calcium, protein, and vitamins, regulating intestinal function, and providing energy. However, there are also contraindications, such as avoidance in those with lactose intolerance. The detailed analysis is as follows:

I. Benefits
1. Calcium supplementation: Milk powder contains sufficient added calcium, along with vitamin D to enhance absorption. This helps meet the calcium needs of bones in middle-aged and elderly individuals, reducing the risk of osteoporosis and fractures, thus maintaining bone health.
2. Protein supplementation: High-quality proteins in milk powder are easily digested and absorbed, helping repair body tissues, strengthen muscles, boost immunity, and alleviate age-related muscle loss and declining physical condition.
3. Vitamin supplementation: Milk powder is rich in various vitamins, including B-complex vitamins, vitamin C, and vitamin E. It comprehensively supplements nutrients that may be lacking in daily diets, supporting normal metabolic functions.
4. Intestinal regulation: Some milk powders contain probiotics that help balance gut microbiota, promote intestinal motility, improve common digestive issues like constipation and indigestion in the elderly, and support overall gut health.
5. Energy supply: Milk powder contains carbohydrates and other nutrients that provide quick energy for middle-aged and elderly individuals, helping relieve fatigue—especially beneficial for those with poor appetite or needing post-activity recovery.
II. Contraindications
1. Avoid in lactose-intolerant individuals: These individuals lack sufficient lactase enzyme to break down lactose in milk powder, which may lead to bloating, diarrhea, and abdominal pain after consumption. They should avoid regular milk powder.
2. Avoid in individuals allergic to milk protein: Milk proteins in milk powder may trigger allergic reactions such as skin itching, rashes, or breathing difficulties. Such individuals must strictly avoid consuming milk powder.
3. Use with caution in individuals with impaired kidney function: Milk powder contains high levels of protein and minerals. Those with poor kidney function have reduced metabolic capacity, and excessive intake may increase the burden on the kidneys. Consumption should be controlled under medical guidance.
4. Use with caution in individuals with hyperlipidemia: Regular whole milk powder has a high fat content, which may elevate blood lipid levels and increase vascular strain. These individuals should choose low-fat or skimmed milk powder and avoid excessive consumption.
5. Use with caution in diabetic patients: Some milk powders contain added sucrose or similar ingredients that may cause blood glucose fluctuations. Diabetic individuals should opt for sugar-free or low-sugar milk powders and strictly control their intake to maintain stable blood glucose levels.
Middle-aged and elderly individuals should select appropriate types of milk powder based on their health conditions and control daily intake to prevent overconsumption. If discomfort occurs after drinking, they should stop immediately and consult a healthcare professional.