PRO (YES)
The National Dairy Council wrote in a Nov.- Dec. 2004 article titled "Building Better Bones With Dairy Foods Throughout the Lifecycle," published in the Dairy Council Digest, that:
"Prevention of osteoporosis begins in childhood and adolescence because much of genetically determined peak bone mass is accrued during the first two decades of life. Studies in children and adolescents demonstrate that increasing consumption of dairy foods benefits bone health - or that low intake of dairy foods compromises bone health and may increase the risk of bone fractures during growth. Moreover, consuming an adequate intake of milk and other dairy foods during childhood and adolescence may protect against fractures in later years.
Investigations in adults demonstrate that consuming calcium-rich dairy foods such as milk, cheese, or yogurt reduces age related bone loss and risk of osteoporotic fractures.
Milk and other dairy foods are the preferred source of calcium because of their high calcium content and the presence of other nutrients important for bone and overall health."
Nov.-Dec. 2004 National Dairy Council
CON (NO)
The Physicians Committee for Responsible Medicine wrote in their article "Health Concerns About Dairy Products," posted on their website (accessed Nov. 19, 2007): "Milk's main selling point is calcium, and milk-drinking is touted for building strong bones in children and preventing osteoporosis in older persons. However, clinical research shows that dairy products have little or no benefit for bones. A 2005 review published in Pediatrics showed that milk consumption does not improve bone integrity in children. Similarly, the Harvard Nurses' Health Study, (1.49 MB) which followed more than 72,000 women for 18 years, showed no protective effect of increased milk consumption on fracture risk. While calcium is important for bone health, studies show that increasing consumption beyond approximately 600 mg per day-amounts that are easily achieved without dairy products or calcium supplements-does not improve bone integrity.
In studies of children and adults, exercise has been found to have a major effect on bone density. You can decrease your risk of osteoporosis by reducing sodium and animal protein intake in the diet, increasing intake of fruits and vegetables, exercising, and ensuring adequate calcium intake from plant foods such as kale, broccoli, and other leafy green vegetables and beans. You can also use calcium-fortified products such as breakfast cereals and juices, although these products provide more concentrated calcium than is necessary."
Nov. 19, 2007 Physicians Committee For Responsible Medicine
Another article, "Top 10 Pros and Cons of the Milk Debate."