I think breakfast is entirely optional - provided you feel OK when you don't eat.
If you go all wobbly, or ravenously hungry, or your concentration goes, then food is a good idea.
I have a whole range of different options (all Low Carb) that I choose as appropriate.
- Full English minus carby stuff (weekends and holidays)
- cup of coffeesubstitute and cream (workdays)
- nothing at all (sometimes I just forget!)
- cold ham and cheese
- berries and greek yoghurt
- homemade muesli style crunchy breakfast cereal
http://www.ditchthecarbs.com/2015/03/06/grain-free-cinnamon-crunch/
- scrambled eggs
- leftovers from the night before
and today, I will be having a slice of this homemade low carb danish :
http://joyfilledeats.com/blueberry-danish/
Of course, mine doesn't look
quite like this one...