Dr. Mirkin's Fitness & Health eZine
April 5, 2009
Should You Drink Milk and Eat Dairy Products?
In this month's issue of the American Journal of Clinical Nutrition is a debate on whether milk causes cancer, heart attacks and a shortened life span (March 25, 2009). Dr. Amy Lanou of the University of North Carolina in Asheville, NC, writes that you don't need milk to be healthy. There is little evidence that the calcium in milk prevents osteoporosis. Osteoporotic bone fracture rates are highest in countries that consume the most dairy products, and most studies of fracture risk provide no evidence that dairy products benefit bone. But Dr. Connie Weaver of Purdue University claims that studies show that dairy products are associated with reduced risk of stroke, metabolic syndrome, and some cancers. She does admit that dairy products can elevate blood levels of insulin-like growth factor (a cancer promoter), and that the high calcium content of milk can reduce blood levels of active 1,25 dihydroxy vitamin D (a cancer preventer). The issue is far from settled. Extensive theoretical evidence shows that whole milk dairy products are full of saturated fat and cholesterol that may increase risk for heart attacks. We do not know if dairy products really increase cancer risk. Professor Ajit Varki, of U Cal/San Diego, proposes a theory to explain why eating meat, which contains Neu5Gc, increases risk for cancers, heart attacks and arthritis. If his theory is correct, dairy products should also be linked to these diseases because milk also contains Neu5Gc, although in much smaller amounts (meat has seven times more Neu5Gc than dairy products). More on this at
Avoid Red Meat
http://www.drmirkin.com/public/ezine111608.html
http://www.drmirkin.com/public/ezine111608.html