TABLE 1—
Herbal Products and Supplements Used by Study Participants: Michigan, June 2000–June 2002
| Users of Product, % | |||
| Product | Rural | Suburban | Urban |
| Any herbal product or supplement | 17 | 35 | 27 |
| Glucosamine | 15 | 18 | 10 |
| Chondroitin | 8 | 13 | 6 |
| Saw palmetto | 1 | 1 | 0 |
| St. John’s wort | 1 | 3 | 3 |
| Shark cartilage | 0 | 1 | 1 |
| MSM | 2 | 1 | 2 |
| Ginseng | 1 | 6 | 3 |
| Arnica | 0 | 2 | 1 |
| White willow bark | 0 | 1 | 0 |
| Echinacea | 0 | 11 | 7 |
| Fish oil/omega-3 oils | 1 | 5 | 3 |
| Evening primrose oil | 0 | 1 | 1 |
| Melatonin | 1 | 3 | 1 |
| Valerian | 0 | 1 | 2 |
| Ginkgo | 0 | 6 | 3 |
| Coenzyme Q10 | 1 | 3 | 1 |
| DHEA | 0 | 2 | 1 |
| Garlic | 0 | 5 | 6 |
| Soy products | 1 | 6 | 6 |
| Flax seed oil | 0 | 6 | 3 |
Note. MSM = methylsulfonylmethane; DHEA = dehydroepiandrosterone.