Dairy Consumption, Obesity, and Insulin Resistance in Young Adults
This article suggests that dairy consumption is protective for diabetes and insulin resistance. Now, although the author does not mention it, dairy does contain conjugated linoleic acid, a compound actually formed from the bacteria in the lumen of the cow, which does act as a PPAR-gamma ligand, similar to the thiazodiazone class of diabetic drugs. However, being that dairy is still a common allergen and is loaded with hormones and chemicals that may increase your risk of many other types of diseases, you are welcome to substitute dairy for a healthy lifestyle with plenty of exercise (aerobic and resistive), whole grains and lots of fruits and veggies.
The CARDIA Study.