I have spent some time in the files and cannot find what I am looking for about the J-herb. In the back of my mind I "seem" to remember that if your horse has cancer, do not use J-herb as this will hasten the cancer problem. Is this correct? And is a Sarcoid tumor considered cancer? Thanks, Donna ECIR2011 NRCPlus0213 NAT0413 Beaufort, SC