Dietary calcium intake was measured to determine if Longitudinal Study of Astronaut Health (LSAH) participants meet the recommendations of the National Osteoporosis Foundation for prevention of osteoporosis and promotion of bone health.
The data were obtained through a Food Frequency Questionnaire sent out in the fall of 1998. A total of 651 participants responded to the questionnaire (116 male astronauts, 21 female astronauts, 448 male comparisons, and 66 female comparisons). Results of a national survey, the 1996 Continuing Survey of Food Intakes by Individuals (CSFII), were used to compare the LSAH participants to the U.S. general population. The findings for respondents over 20 years of age (1704 males and 1532 females) were used as comparison to those of LSAH participants.
All respondents reported dietary calcium intake below the recommended amount of 1000 mg per day, with the exception of female astronauts. Female comparison participants also reported higher calcium intake than the female general population. The male comparison participants reported the lowest calcium intake as compared to male astronauts and the male general population.