Study title

This survey is part of Centerdata's Telepanel project. Telepanel consists of approx. 2000 households, surveyed weekly. I Besides the Centerdatabase offers opportunities to compose tailor-made datasets. Knowledge about and use of additions to food like extra vitamins and minerals. Background Variables: Age categorized / Year of birth / Cohabitation / Sex Housing situation Nr. of children / Size of family/household Position in family/household Respondent: occupational status Respondent: net income Respondent: highest type attended / Respondent: highest grade attained Other: constructed variable ( social economic class ) according to GFK * Dongen.