If I go out for under 7km I go out on an empty stomach in the AM, or in the PM it would be after eating a normal Atkins day.

Anything over 7km and I have a small bowl of oatmeal (about 1/2 cup cooked) with 2 or 3tbsp of heavy cream and I am fine up to 12km.

Fruit doesn't do me any good -- it really does spike my blood sugar too much, but the oatmeal with heavy cream seems to be fine.