http://www.hc-sc.gc.ca/dhp-mps/prodnatur/index_e.html

Therapeutic Products Directorate of Health Canada:
http://www.hc-sc.gc.ca/ahc-asc/branch-dirgen/hpfb-dgpsa/tpd-dpt/index_e.html
Responsible for the regulation of pharmaceutical drugs, medical devices and other therapeutic products available to Canadians. This includes evaluating and monitoring their safety, effectiveness and quality.

Health Canada Advisories
http://www.hc-sc.gc.ca/ahc-asc/media/advisories-avis/index-eng.php
This archive of previously issued advisory, warning and recall notices is provided for reference and research purposes. The products listed in these past notices have been subject to removal from the marketplace or appropriate corrective action. These notices are not an indication of the safety status of products produced at a later date.

FDA - Food & Drug Administration - Center for Food Safety & Applied Nutrition, Dietary Supplements:
http://www.cfsan.fda.gov/~dms/supplmnt.html
The Center for Food Safety & Applied Nutrition is a branch of the U.S Food and Drug Administration (FDA), which is a public health agency, charged with protecting American consumers by enforcing the Federal Food, Drug, and Cosmetic Act and several related public health laws. Stated most simply, the FDA's mission is to promote and protect the public health by helping safe and effective products reach the market in a timely way, and monitoring products for continued safety after they are in use. Their work is a blending of law and science aimed at protecting consumers. This specific branch is an overview of FDA regulation of dietary supplements.

NIH - National Institutes of Health, Office of Dietary Supplements:
http://dietary-supplements.info.nih.gov
The Office of Dietary Supplements (ODS) is a congressionally mandated office in the Office of the Director, National Institutes of Health (NIH). The ODS supports research and disseminates research results in the area of dietary supplements. The ODS also provides advice to other Federal agencies regarding research results related to dietary supplements.

NNFA - National Nutritional Foods Association:
http://www.nnfa.org/
The National Nutritional Foods Association (NNFA), founded in 1936, represents the interests of some 3,000 retailers and 1,000 manufacturers, suppliers and distributors of health foods, dietary supplements, natural ingredient cosmetics, and other natural products. The NNFA is the heart of a growing, vital industry committed to health, well-being, and a sustainable environment. NNFA promotes and protects the unique values and shared interests of retailers and suppliers in the natural nutritional foods and products industry.

NSF® International
http://www.nsf.org
NSF International is a not-for-profit, non-governmental organization, is the world leader in standards development, product certification, education, and risk-management for public health and safety. For 65 years, NSF has been committed to public health, safety, and protection of the environment.

Natural Products Association
http://www.npainfo.org
Founded in 1936, the Natural Products Association is the nation’s largest and oldest non-profit organization dedicated to the natural products industry. The Natural Products Association represents more than 10,000 retailers, manufacturers, wholesalers and distributors of natural products, including foods, dietary supplements, and health/beauty aids.

The Canadian Health Food Association
http://www.chfa.ca
The Canadian Health Food Association is Canada’s largest national trade association dedicated to the natural health and organic products industry.
The association represents manufacturers, retailers, wholesalers, distributors, growers and importers of natural and organic products, including foods, vitamin and mineral supplements, herbal products, homeopathics, sports nutrition products, fibres and health and beauty aids.