It’s great that you found a diet that helps with your health and works for you!
You probably know this anyway and most likely implied it, but I just want to stress that carbohydrates per se are not bad. Yes, eventually everything is being broken down to sugar, but you should not reduce carbohydrates to this function only. Oats are mostly carbohydrates, but they are whole grain with a lot of fiber and are a great source for iron (if not eaten with dairy). Their GI is in the 50s but you would have to take the whole dish into account, as rarely you’ll just sit there munching oats like a horse. Buckwheat and quinoa are often praised for their high protein content (and it’s true, they have like 10-12g of protein per 100g) but they still consist mostly of carbohydrates. A slow breakdown of complex carbohydrates gives you long term energy without raising blood sugars too much.
Not sure that’s how to math