My favourite food is raw fish. A breakfast of raw fish & brown rice at 6am and you won't feel hungry till early afternoon. I swear !
The important thing with raw fish is the sauce ( Soy with fresh herbs & garlic ) and also to eat very fresh fish.
Raw fish for breakfast may sound daunting, but I suggest you try it for dinner first, and then when you realize how good it taste, add it to your breakfast menu. With the brown rice its got a nice chewy texture ( like meusli !) and it gives you more energy than any other breakfast cereal.
If real raw fish is too gross for you to try, marinate the raw fish in lemon juice first. The lemon juice kind of cooks the fish.
Enjoy !