Table 4 Reporting of dietary supplement design elements
|  | Jet lag (n = 8) | Insomnia (n = 4) | Healthy volunteers (n = 15) | Shift workers (n = 8) | Total N (%) |
|---|---|---|---|---|---|
Assessment of baseline exposure | 0/8 | 2/4 | 2/15 | 0/8 | 4/35 (11%) |
Control for background diet | 5/8 | 1/4 | 11/15 | 4/8 | 21/35 (58%) |
 Description of Melatonin preparation | 1/8 | 3/4 | 11/15 | 5/8 | 20/35 (57%) |
 Chemical analysis of Melatonin preparation | 2/8 | 0/4 | 3/15 | 1/8 | 6/35 (17%) |
 Absorption analysis of the Melatonin preparation | 1/8 | 2/4 | 9/15 | 1/8 | 13/35 (37%) |
Total N (%) | 9/40 (22%) | 8/20 (40%) | 16/75 (48%) | 11/40 (27%) | Â |