I bend until my back is slightly tilted downward - I actually had to excuse myself from a meeting this morning to go out & do this because I had a disruptive cough. Sorry, I don't pay any attention to mealtimes, other than not eating after 8 pm.
I have nebbed for ?many years - sometimes as often as 5 times a day - if I spaced out nebbing and eating, I would have starved to death. I just do it before breakfast, otherwise I wait a "while" after I eat to neb. I used to have to neb plus eat in a 30 minute lunch break.
Sue