Still Learning in Gluten-Free Foods, Products, Shopping & Medications Posted May 29, 2007 · Report to Admin Can I please get some help in determining whether certain ingredients on labels contain gluten or not. I'm good when it obviously says "wheat, rye, barley or oats" but do I assume "natural flavorings or caramel flavorings" would have gluten in them? I think I'm clear now on modified food starch being made from corn. Are there lots of other ingredients I should just assume have gluten? I was re-tested about three months ago and I am still testing positive for that antibody which means I'm not doing as well as I thought.