A grain is a small, hard, edible seed produced by cereal grasses.
The word comes from the Old English word cyrnel, which means “small seed” or “little grain”.

SOME DIFFERENT TYPES OF GRAINS
Cereal grass is any grass plant that is grown for its edible seed (grain).

A FIELD OF CEREAL GRASS.
Wheat, rice, oats, and corn are some examples of cereal grasses.

WHEAT, RICE, OATS, AND CORN
A grain has three main parts:
Bran: The tough outer skin that protects the seed. It’s full of fiber (helps you poop) and some good vitamins.
Endosperm: The big, soft, starchy middle. This is the plant’s food supply so it can grow.
Germ: The tiny baby plant inside, waiting to sprout. It’s packed with healthy fats, protein, and vitamins.

You may have seen some cereal grains in the grocery store (usually the bulk section) labelled as “berries”.
That’s pretty common. It’s mostly marketing and what chefs like to say when talking about using the whole grain in their creations. A “white bean salad with sauteed wheat berries” sounds better than bean salad with wheat grain.
So, people often use the words grain, seed, and kernel to mean the same thing, while “berry” is just a nickname.

WHEAT BERRIES
When a label says whole grain, it means all three parts of the seed (grain) are used in making that product.
And that’s it.
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