According to eHow.com :Oat groats are the harvested "as-is" variety of oats. They are untreated, natural hulled oats. They come straight from the field to the table with no processing in between. They contain high-quality protein, seven B vitamins, calcium, fiber and unsaturated fats.
Groats look like Grapenuts cereal, small, tan, and crunchy. When I read the directions to how to make this I couldn't believe how long it took. There are as many directions on how to cook the groats as there are streets in a city. Here is what I do: 1 cup of groats. 4 cups of water. Place both in a medium sized pot. Cover and let soak for an hour or overnight or just cook them right away. Bring to a boil and simmer for about 25 minutes to an hour. I like mine a bit crunchy, so I don't cook for the full hour and who has time to in the morning anyway. Then add milk, butter, cinnamon, honey, or whatever you like. By the time I am done adding the sugar and butter, it probably isn't that healthy after all.