<<Disclaimer: Verify this information before applying it to your situation.>> Has anyone called S & W lately to ask them where their citric acid comes from? I am going to try tomatoes again after not eating them for a while (they seemed to be upsetting my stomach, but I'm not sure if it actually was them) and have S & W. Wanted to try some Sunday and can't call the company before then. Thanks! -Christie in Chandler, AZ