Be careful. If you can get hold of genuinely raw, unprocessed glands from such sources as NorthStar Bison etc., then that's fine. Getting hold of processed glandulars is, imo, a waste of time. Some time after going RPD, I was annoyed at not being able to get hold of raw glands due to stupid draconian EU regulations, and bought some of Dr Ron's processed, dried glandular supplements. They were useless , though.