George highly recommends that you look for a soy sauce that is traditionally made. Also, it's important to find one that doesn't have artificial colors or flavors, including caramel coloring. (Read the ingredients list to determine what the soy sauce contains.) Many supermarkets and Asian groceries now offer these additive-free varieties; natural food stores also are a very good source for them. If you are have a wheat sensitivity, wheat-free versions are available. These are sometimes labeled as "tamari." (Please note though that "tamari" is actually a broader class of soy sauce that reflects that it is made with either less or no wheat). George usually uses wheat-free tamari when cooking.