Gluten is only one problematic protein in grains. Oats don't have gluten btw, its cross contamination issue and I doubt contaminated "gluten free oats" provide significant source of gluten. It may be valuable for celiacs but for rest of us, its waste of money IMO, if you eat them at all.
I don't eat them. They tend to promote weight gain IMO.
I used to have oat bran for breakfast too before paleo, for the reasons you mention. I now have it just once a week, fermented. Soak in whey and water for 48 hours. I'm telling myself that this makes it a bit more acceptable.
I just bought oat groats and soaked them with my buckwheat groats to so the phytase in the buckwheat will diminish the phytates in the oats. Then I air dry on dehydrator racks, then run them through the Vita-mix dry blender and voila...flour. My goal is to make oatmeal bread for my husband and son who are not Paleo. If it fails to rise, I will next try a 2 wk long fermented sourdough dough starter as 1/3 of the recipe and the rest will be oats/buckwheat.
Oats, like all grains, are not generally considered paleo. However, I don't think it is the worst thing you can eat--particularly if you find it satiating (some people do, some don't). That said, if you are going to eat to eat them I would soak/ferment them first as per WAPF directives.
Oats (including oats grown and processed in such a way that they aren't contaminated with gluten) have a protein similar to gluten called avenin. Some people sensitive to gluten are also sensitive to this protein, while others aren't. They're also very carby, of course.
So, if eating oatmeal is important to you, pay attention to how your body reacts.
This thread gave me the idea to buy some oats, so I did today and just ate 2 cups (dry) of rolled oats to hit my carb target and that was...unpleasant. Rice is so much more carb-dense and has less water in an edible state. I may do this on occasion, but you have to have a lot of stomach space if you want to eat 100g or so of carbs in one go. I'll report back at some point with how my gut feels after that huge bowl.
Hm sounds like a cheating excuseI used to be addicted to oatmeal. It kept me full for a whole 30min! Why not have something with more nutrition? Oatmeal is basically empty calories. And yes, it's grains.