I no longer recommend dairy products after the age of two years. … Of course, there was a time when cow's milk was considered very desirable. But research, along with clinical experience, has forced doctors and nutritionists to rethink this recommendation. It is an area where there are still disagreements among scientists, but there are several points that most everyone agrees on. First of all, other calcium sources offer many advantages that dairy products do not have. Most green leafy vegetables and beans have a form of calcium that is absorbed as well as or even a bit better than that in milk. Along with this calcium come vitamins, iron, complex carbohydrates, and fiber. Calcium-enriched soy or rice drinks are just as tasty on cereal as cow's milk (once you get used to them), and they are free of animal proteins and cholesterol. These beverages, as well as calcium-enriched orange and other juices, provide as much calcium, ounce per ounce, as cow's milk. Vegetables and legumes can provide a healthy source of calcium, along with many other nutritional advantages.
Benjamin Spock