### Question
What is the definition of milk?


### Answer
The definition of **milk** is as follows in *21 CFR § 101.4*:

> cow's milk, which may be adjusted by separating part of the fat therefrom or by adding thereto one or more of the following: Cream, skim milk, concentrated skim milk, nonfat dry milk, water, in a quantity sufficient to reconstitute any concentrated skim milk or nonfat dry milk used.

#### Citation:
  - *21 CFR § 101.4*
