The system of imperial units or the imperial system (also known as British Imperial or Exchequer Standards of 1825) is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced. The Imperial units replaced the Winchester Standards, which were in effect from 1588 to 1825.
Almost all types of cow's milk in the U.S. are fortified with vitamin D, but ice cream and cheese are not. In general, an 8-ounce glass of milk contains at least 100 IUs of vitamin D, and a 6-ounce serving of yogurt contains 80 IUs, but the amount can be higher (or lower) depending on how much is added.
Skim milk, 1 percent milk, 2 percent milk and whole. milk all have the same amount of protein, calcium, vitamins and minerals. Vitamin D is added to all of. them. The amount of fat is the only difference between them, and itâs a big difference. Half the calories in whole. milk come from fat and one-third of the calories in 2. percent milk come from fat. Only 1 percent milk and skim milk are truly low-fat.