[QUOTE 2791925, member: 259"]Oats are more filling for longer when cooked.[/quote]
I struggle to understand this. Cooking breaks down the grain and therefore should make it easier to digest, not more difficult (which is what "more filling" is really about). Ditto for soaking.
It depends whether you mean a muesli you have made yourself or a shop bought variety that will have sugar and stuff added.
Depends on the shop. I eat Neals Yard Rich muesli from Holland and Barrett, which is grain, nuts, seeds, fruit and nothing else. It's also cheaper than big-brand supermarket muesli.