Dawn, Yes but I'm not real strict about it. I don't keep a diary, only if they ask for something we are rotating I will say, "Let's see, today is Wednesday and you had it on Sunday, ok". I don't go strictly by the every 4 days. My children do not have too many physical/medical problems from their allergies, most are behavioral and learning problems, so letting my 7 year old have milk for instance means he might be a little hyperactive, he doesn't have a physical reaction such as hives or asthma attack etc. I believe my 8 year old is helped with his constipation and his temper/attitude by not having milk (along with limiting sugar, dyes, preservatives etc), so again it isn't life threatening, just a much nicer environment!! Janine