For centuries, we have been led to believe that dairy products should form an essential component of our diets. However, it is well known that many nations are dairy-intolerant, and that even dairy-tolerant nations are subject to many allergenic responses to dairy products.

New evidence implicates dairy in not only allergenic responses, but in potentially lethal diseases, such as osteoporosis, leukemia, and diabetes. Discover the latest scientific findings and their impact on our lifestyle choices (80 minutes).