| Vitamins | |
| Type of Vitamin and Listing Order: | Stated in: |
| Vitamin A, other than precursors of vitamin A | International Units per pound (IU/lb) |
| Vitamin D-3 in products offered for poultry feeding | International Chick Units per pound (ICU/lb) |
| Vitamin D, for other uses | International Units per pound (IU/lb) |
| Vitamin E | International Units per pound (IU/lb) |
| Concentrated oils and feed additive premixes containing vitamins A, D, and/or E | May, at the option of the distributor, be stated in units per gram (g) instead of units per pound (lb) |
| Vitamin B-12 | Milligrams (mg) or micrograms (µg) per pound (lb) |
| Menadione, riboflavin, d-pantothenic acid, thiamine, niacin, vitamin B-6, folic acid, choline, biotin, inositol, p-amino benzoic acid, ascorbic acid, and carotene | Milligrams per pound (mg/lb) |