Key Players
- A&Z Pharmaceutical
- Amway (Nutrilite)
- Bayer
- Bio Island
- BioCalth
- Bluebonnet Nutrition Corporation
- GNC Holdings
- GlaxoSmithKline plc (GSK)
- Harbin Pharmaceutical Group
- High Change
- Nature Made
- Nature's Bounty
- Pfizer (Caltrate)
- Shanxi Zhendong Pharmaceutical Co. Ltd
