It's my own idea for a super oatmeal. Working on the idea that it's not just about having fiber in your diet, but more so about variated fiber. Each kind of fiber is preferred by a different type of gut bacteria (I'm just repeating after some hippy that most likely made that up). And the best gut biome is the most variated one. Usually pathologies stem from monocultures. Look at the most of the society. Bread, cookies, pretzels, even pizza etc. - it's all made of wheat. Sometimes you'll get oat cookies. But other grains show up in people's diets very rarely.

Here's the recipe. I'm using norwegian 5-grain oatmeal that has oats, wheat, barley, rye and spelt:

Recipe: Use two parts oatmeal (either 4-korn or 5-korn). Add one part nut mix and one part seed mix. So for 50 g of oats, add 25 g of nuts and 25 g of seeds.

Seeds: 30% flaxseed 30% chia 20% pumpkin seeds 20% sesame

Nuts: 4 parts walnuts 2 parts pecans 1 part Brazil nuts

P.S.: since most of these ingredients are pretty cheap (oatmeal used to be poor mans food), you can upgrade to Eco versions of these and get much better taste, without going that much up in price. Especially nuts.

Also, I have the nutmix and seed mix pre blended in 2 liter jars, so that I only have to mix them once a month or two.