Which of the following must be true for a grain to be called whole?
a. the grain must consist of bran and the endosperm.
b. the grain has the full value of dietary fiber.
c. the grain has been refined.
d. the grain contains all three parts of the kernel.

The correct answer is D. The grain contains all three parts of the kernel.

A wholegrain refers to a grain that contains all three original parts of the kernel: the bran, the endosperm and the germ (refer to attached image). A wholegrain, unlike a refined grain is not processed and has all three parts of the kernel intact. Examples of wholegrain food sources include barley, brown rice, oatmeal, whole wheat pasta, etc.  

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