Perhaps you would still like to answer the questions I posed on this topic, because that is all I asked. I am curious to know the answers to those questions, I do not care about the background of Dr. Osborne as I am more aware of the situation than you are, and he is also one of the best known authors out there on Celiac disease. But did you even bother to read the three Research Papers I posted by NIH? You must be one of those who are only gluten intolerant and not yet reacting to all glutens aka grains, but I AM one of those who react to ALL the glutens, and again, that is one of the two questions I originally posted on this matter. NIH sees all these grains as in opposition to celiacs, of which I am one and that is science, not any MD with a good memory who overprescribes medications that contain known food allergens in them, of which they have zero knowledge if the patient is in fact allergic to or not, since they failed to do simple 'food sensitivity' testing.
I started with the failed FDA explanation of what Gluten Free is and I stayed sick and got even sicker. It wasn't until I came across NIH's papers and went off all grains that I realized that in fact, I am Celiac and reacting to all the glutens. IF a person wants to get well, they should be the one to determine what grains they are allergic to and what grains they want to leave out, not you. Those who are just getting started with learning about grains etc., can take it easy by just being "grain free' and eating a lot of meat, vegetables, etc. or whole foods as God has intended, without buying so called gluten free garbage out there that is making them sick and the whole reason they are not better. I tried the stupid gluten free garbage and it didn't work, and that will make anyone want to give up, it is better to teach the entire truth and let the patient decide, rather than give them misinformation and lies.
I was born with celiac disease im 20 years old. And I've been gluten free my whole life. Yes my diet is 100 percent gluten free and no i don't eat at restaurants at all. I got glutened by a chips that was marked as gluten free but it wasn't the company said the packaging was old and the recipe was new.
Welcome to the forum, the biggest source of cross-contamination would be eating our in restaurants--even ones that have a gluten-free menu. If your son was just recently diagnosed I'd recommend trying not to eat out during his healing period, which could last up to a year or more, depending on how much villi damage he had.