Most omega fatty acid supplements are made primarily from fish oil or flax seed oil (see the separate handouts on these products in this series), although some products may include other oils such as evening primrose oil, hemp oil, or borage oil.
Most commercially available fish oils are derived from coldwater fish, primarily menhaden, but also salmon and trout. These oils are rich in the Omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
Glucosamine is arguably the most commonly used nutraceutical in the world. Medical and veterinary practitioners who avoid alternative medicine in general will still frequently prescribe glucosamine, usually as treatment for osteoarthritis and degenerative joint disease.
The term 'nutraceutical' was coined to represent compounds found in food and herbs that are not technically considered nutrients such as vitamins or minerals, but which may have a profoundly beneficial impact on the health of the body. Common examples of nutraceuticals include glucosamine, used in the treatment of arthritic conditions of dogs and cats, and antioxidant compounds that help in the prevention of cancer.
SAMe (S-adenosylmethionine) is the bioactive form of methionine, an essential amino acid (building block of protein) abundant in foods, but especially concentrated in meat and sunflower seeds. Supplementation with methionine alone, however, does not necessarily markedly raise the level of bioactive methionine, or SAMe.
Traditional Chinese Medicine (TCM) is a complete system of medicine developed in China. Its roots are in writings and practices which were developed over millennia.