Table 3.
National differences in important components of nutritional supplements
| Very important | France (n=32) |
Germany (n=32) |
Italy (n=30) |
Spain (n=30) |
United Kingdom (n=30) |
Belgium (n=30) |
Portugal (n=32) |
|---|---|---|---|---|---|---|---|
| Lutein | 75.0% | 90.6% (+) | 70.0% | 73.3% | 83.3% | 63.3% | 81.3% |
| Omega-3 | 71.9% | 78.1% | 80.0% | 66.7% | 60.0% | 66.7% | 78.1% |
| Zeaxanthin | 62.5% | 78.1% | 56.7% | 63.3% | 70.0% | 66.7% | 75.0% |
| Zinc | 59.4% | 56.3% | 76.7% (+) | 46.7% | 60.0% | 60.0% | 46.9% |
| Vitamin E | 43.8% | 53.1% | 83.3% (++) | 40.0% | 40.0% | 33.3% | 53.1% |
| Vitamin C | 56.3% | 59.4% | 73.3% (++) | 26.7% (−) | 33.3% | 33.3% | 53.1% |
| Fatty acids | 62.5% (+) | 50.0% | 60.0% | 33.3% | 20.0% (− −) | 26.7% (−) | 65.6% (+) |
| Vitamins (in general) | 46.9% | 56.3% | 53.3% | 43.3% | 30.0% | 30.0% | 31.3% |
| Beta-carotene | 31.3% | 37.5% | 70.0% (++) | 36.7% | 46.7% | 30.0% | 43.8% |
| Pigments | 71.9% (++) | 37.5% | 40.0% | 33.3% | 50.0% | 13.3% (− −) | 34.4% |
| Docosahexaenoic acid | 53.1% | 31.3% | 50.0% | 43.3% | 20.0% (−) | 40.0% | 43.8% |
| Eicosapentaenoic acid | 37.5% | 28.1% | 43.3% (+) | 16.7% | 3.3% (− −) | 33.3% | 28.1% |
| Resveratrol | 25.0% | 15.6% | 56.7% (++) | 20.0% | 26.7% | 10.0% (−) | 28.1% |
| Omega-6 | 15.6% | 25.0% | 40.0% (+) | 36.7% | 20.0% | 16.7% | 15.6% |
| Anthocyanins (blueberries) | 25.0% | 18.8% | 53.5% (++) | 23.3% | 13.3% | 13.3% | 15.6% |
| Vitamin B | 21.9% | 21.9% | 43.3% (++) | 16.7% | 6.7% (−) | 10.0% | 18.8% |
| Neoxanthin | 15.6% | 3.1% (− −) | 56.7% (++) | 26.7% | 13.3% | 6.7% (−) | 18.8% |
| Astaxanthin | 21.9% | 6.3% (−) | 43.3% (++) | 26.7% | 16.7% | 3.3% (−) | 15.6% |
| Vitamin D | 34.4%** | 15.6% | 16.7% | 6.7% | 3.3% (−) | 3.3% (−) | 12.5% |
Notes: “How important are each of the following components when choosing a food supplement product for age-related macular degeneration patients?” Values significantly greater or lower, respectively, than the group average are indicated as follows: +/− = P<0.05, ++/− − = P<0.01, Fisher–Snedecor test.