Question: what are the best oats to buy?
Answer: But, the Oat Groats remain the healthiest because it is the purest form of the whole oat you can eat. It contains the most nutrition and is the least processed. However, in order of nutritional value, the Groat oat is followed by Oat Bran, then Steel-Cut Oats, then Rolled Oats, and last Instant Oats.