For many years, health experts, physicians, and nutritionists have been urging people to cut down on fat by moving to low-fat dairy products. Many people have responded, to the point that in some cases (yogurt, especially) it has become difficult to find the "real" stuff in some stores.
But a lot of the dietary advice we've been getting for the past couple of decades always seemed a little suspect to me. Specifically on dairy products, I thought the low-fat idea was ridiculous. In part, that's because dairy is a relatively small part of my diet - if I eat a couple of tablespoons of yogurt a day, the calorie "savings" of using low-fat just isn't that significant. The other and more important reason is that there's no case I can think of where the low-fat version tastes as good as its regular parent. (One possible except is milk, which I have never liked - there, I find 2% more tolerable.)
Now "experts" are getting to the "not so fast!" stage, and may even be modifying earlier advice. Some current studies suggest, for example, that people who ate more full-fat milk actually had a lower incidence of heart disease. I suspect it may take quite a few more years before the dietary guidelines are really changed but in the meantime, it's always possible to ignore them.