Can you give us an example of what your son eats on the low choline diet throughout a day or two? Breakfast-Lunch-dinner I already stay away from beef, fish, eggs and beans. I suspect I have TMAU because this started at puberty and I also have alot of allergies. If I stick to this diet and the ordor is less, then I need to look into getting tested. One thing I have learned over the years is that the ordor gets worse year after year, I can smell it probably 70% of the time now. Thank you so much for all of the information you have already given us. God bless you