Unless the product in question is naturally low in fat (such as fresh fruits), I recommend staying away from low-fat products, especially processed products. Neither saturated fat nor dietary cholesterol are bad for your health or detrimental to your weight-loss efforts, despite what you may have been told. Check out my in-depth article about saturated and polyunsaturated fats to learn more about those myths. So I’d stay away from low-fat dairy products or processed foods that claim to be low in fat. When manufacturers remove fat from a product, they usually substitute it with sugar. Just take a look at the ingredients label of your favorite low-fat yogurt and you’ll see what I mean.