Natural flavors might just be the end of me. They are in EVERYTHING. Because of my daughter's corn allergy, I have to read every label very carefully and usually end up calling the company to be sure there are no corn derivatives. I already feel like there isn't enough time in the day, so calling company after company isn't exactly how to want to spend the few free minutes I have!
We've realized that she is very sensitive to corn and any derivatives so I've been extra careful lately on what we both eat. I would safely say that if a label says natural flavors, there is a 99% chance that there is corn in the food.
What prompted me to write this post is that we've recently night weaned our daughter and she has been sleeping great. Except a couple nights ago she was up all night, couldn't settle herself and my husband got very little sleep. The next day I tried to figure out what was going on and realized we had been giving her the little juice boxes that we purchased awhile back. Just about everything in my house is "safe" for all of us to eat. I guess this one slipped by because what do you know, natural flavors were listed on the box. And these are organic, no sugar added, real juice drinks. So, I called the company and they said that yes, the natural flavors were in a base of corn (or wheat) alcohol but since "alcohol is a distilled product, there are no proteins from wheat or corn left". I am 100% positive that my daughter reacted to the juice because she hasn't had anything else that could have caused a reaction, isn't sick and had been sleeping fine. Once we stopped the juice, she slept fine again.
So, I've learned my lesson. I don't plan on buying anything else with natural flavors unless I have confirmed that it is corn free. There are some natural flavors that are not corn derived, but be careful if you are corn or wheat sensitive to always confirm the ingredients with the company!