Measurements were total kilocalories (Kcal) typically consumed by respondents of both surveys, as well as corresponding percentages of total fat, protein, and carbohydrates in their typical diets.
When compared to the results of male CSFII respondents 20 years old and over, male LSAH participants reported a lower total consumption of kilocalories. The lower consumption values hold true even when compared to the CSFII respondents in the age groups closer to the mean ages of the male comparisons and astronauts (age groups 40-49 and 50-59 years of age). Female comparison participants reported a mean value similar to that reported by female CSFII respondents 20 years and older. Female astronauts, however, had a lower mean total intake than this group of CSFII respondents. Their reported value comes closer to values for those 50-59 years of age and older.
When the caloric intake is broken down into fat, protein, and carbohydrates, LSAH astronauts and comparison participants reported values similar to those reported by the CSFII respondents.
This brief summary of nutritional intake shows that in general male LSAH astronauts and comparison participants report a lower total consumption as compared to the general population, while female astronauts show a lower intake as compared to the general population. The proportions of fat, protein, and carbohydrates of astronauts and comparisons are similar to that reported in the CSFII. Therefore, the composition of LSAH participants' diet does not substantially differ from that of the general population.
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