OATS AND BARLEY HEALTHY AND DELICIOUS   Barley is a main crop, and oats are a lesser crop that grows from a weed. The main difference is that they are two different grains. Barley has gluten, while oatmeal is a bit sweeter grain and does not have gluten. The differences and benefits of both nutrients are as follows: OATS Oats are a kind of whole grain that people...