This makes them harder to digest than white bread, which has had the outer husk removed before milling.

That way, the seed leaves will then emerge more easily from the outer husk.

The oat, like the other cereals, has a hard, inedible outer husk that must be removed before the grain can be eaten.

This causes nutrients from the outer husk, especially thiamine, to move into the grain itself.

For example, multigrain bread contains whole grains with their fibrous outer husks intact.