The premise seems simple - if your dog has liver problems, feed him liver. What if it's a kidney, thyroid, or adrenal problem? Then feed kidney, thyroid, or adrenal tissue. This is, in its simplest form, glandular or organ therapy. The process has become much more refined over the years. Now your dog can experience the benefits of glandular therapy even when you can't find the raw glands or other organs to feed him. Now, glandulars (the common term for products containing animal cells even if they aren't from glands) are available in tablet, capsule, and liquid form, depending on the manufacturer.