* The form of milk with the most calories is whole-fat chocolate, with 230 calories per cup.
* Whole milk has 150 to 160, depending on the brand.
* Low-fat has 140, extra-light and most buttermilks have 120.
* The low-cal winner is skim milk, with 90 calories.
* Whole milk is about 3.5 percent fat. This equals nine grams per cup, five grams saturated, which translates into two teaspoons of fat.