In addition to asking about the number of vitamin E pills taken per day, interviewers also asked how many international units of vitamin E were in each pill (VITYVITEUN). It is, therefore, possible to determine the number of international units of vitamin E respondents were taking, on days they took vitamin E. The related variables VITAMINEMO and VITAMINEDMO report the frequency of respondents' use of vitamin E in number of months and number of days per month, respectively.

Analysts interested in the number of vitamin E pills taken per day may wish to consult the following variables, which report parallel information for other vitamin/minerals (all only available for 1987):

• VITYVITAPILS Vitamin A

• VITYVITCPILS Vitamin C

• VITYCALCPILS Calcium

• VITYMULTVPIL Multi-vitamins

For more information on the full range of variables related to vitamin and minerals, see VITANY.