Walmart (great Value) Soy Sauce? in Gluten-Free Foods, Products, Shopping & Medications Posted February 4, 2009 · Report to Admin Thanks again for the input, it's good to know other Celiacs are using it. I do tolerate soy, contrary to popular belief on this forum. I'm curious as to the ppm in the soy sauce now... I suppose this has become my pet project for a few days. Anyone else have experience with it?