Table 1 Description of the various groups
From: Nutritional intake of various groups of Flemish vegetarians
| Year of data collection | Age when entering the study (y) | n | Assessment method | Blood sample | |
|---|---|---|---|---|---|
| Group 1 | 1994 | 1 to 10 y | 27 | 7-day food record diary | No |
| Group 2 | 1994 | 7 to 32 y | 50 | 7-day food record diary | No |
| Group 3 | 1997 | 18 to 25 y | 24 | 7-day food record diary | Yes |
| Group 4 | 1999 | 14 to 71 y | 36 | 7-day food record diary | Yes |
| Group 5 | 2005 | 20 to 71 y | 106 | 3-day food record diary | No |