Ancient Chinese guy told me. Also told me to make sure my rice was cooked or I'd get indigestion.... just like eating GVIT casserole. Naw, just a guess just like the rest of the GVIT posts. Any other bag holders have a sore arm from patting each other on the back and reassuring that GVIT will be OK ? Arm slings @ Wal-mart $5.00. Two for $10.25. Noticed that a couple of GVIT stalwarts are waivering.... not a good sign.