Experiment. I’ve minimised them, but not cut them out. Don’t get guilty about having the odd one in a restaurant for example. Don’t mess up your relaxing social time worrying too much!
The reality, as shown by the poll is that people generally seem to have a good go at the diet, but very few manage to stick to it religiously:
http://www.mvertigo.org/t/poll-do-you-follow-a-migraine-restriction-diet/14396?u=turnitaround