Although Special K is a low-calorie cereal, it is not rich in protein, a nutrient that Dr. John Berardi says may help you lose weight and fat. Adding milk to Special K increases protein but also increases calories.
Special K with Whole Milk
According to the Special K website, 1 cup of Special K contains 120 calories, with 0.5 g of fat, 23 g of carbohydrates and 6 g of protein. The online nutrition resource MyFitnessPal notes that adding 1 cup of whole milk to one serving of Special K would result in a total of 272 calories, with 8.5 g of fat, 35 g of carbohydrates and 14 g of protein.
Special K with 2 Percent Milk
If you want to cut calories and fat, you can use 2 percent milk with your Special K. The MyFitnessPal and Special K websites say that 1 cup of Special K with 1 cup of 2 percent milk would provide 240 calories, with 5.5 g of fat, 34 g of carbohydrates and 14 g of protein.
Special K with Skim Milk
The lowest-calorie option is to prepare Special K with skim, or fat-free, milk. The Special K and MyFitnessPal websites explain that 1 cup of Special K combined with 1 cup of skim milk would provide 200 calories, with 0.5 g of fat, 34 g of carbohydrates and 14 g of protein.