Immune Support: Emergen-C VS Airborne

Here is what the FAQ's for each product says:

Emergen-C
"DO YOUR PRODUCTS CONTAIN GLUTEN? All Emergen-C products are free of gluten from wheat, oats, rye, and barley."

Airborne
"4. Is Airborne gluten and wheat free?

Airborne is gluten and wheat free. However, we always advise that you consult with your physician, who is more knowledgeable about such things as celiac disease."