Is there a noticeable difference on BG if you eat museli as opposed to porridge I wonder? Outwith the other ingredients in museli, the oats are raw, so hopefully take longer for the stomach/gut to digest/break down, and therefore are slower to absorb into the blood etc?
Again, in terms of museli per se, apart from screening for low sugar (eg, raisins or whatever), the nuts and seeds are more likely to be higher fat than carb??
I find museli filling and satisfying, and keeps me going till lunch. I do tend to add extra nuts and seeds (OK, and few raisins, I admit, sigh).
You mention almond milk - I'd prefer not to (it's not that eco, apparently, in its production methods, but I may be wrong on that), but I don't mind the oat milk. Would that be lower carb than milk milk? I must go and check! Oat milk is pretty palatable I find - I can even use it in tea, and it doesn't destroy my cuppa!!