Intake of Caffeine from All Sources and Reasons for Use by College Students
Journal Article - Open Access
ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA NATICK United States
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Background and aims Caffeine intake in a convenience sample of U.S. college students N 1248 was surveyed at five geographically-dispersed United States U.S. universities. Methods Intake from coffee, tea, soft drinks, energy drinks, gums, and medications was assessed. Associations between caffeine intake and demographic variables including sex, age, raceethnicity, family income, general health, exercise, weight variables and tobacco use were examined. Reasons for use of caffeine-containing products were assessed. Results Caffeine, in any form, was consumed by 92 of students in the past year. Mean daily caffeine consumption for all students, including non-consumers, was 159 mgd with a mean intake of 173 mgd among caffeine users. Coffee was the main source of caffeine intake in male 120 mgd and female 111 mgd consumers. Male and female students consumed 53 vs. 30 mgd of caffeine in energy drinks, respectively, and 28 consumed energy drinks with alcohol on at least one occasion. Students provided multiple reasons for caffeine use including to feel awake 79 enjoy the taste 68 the social aspects of consumption 39 improve concentration 31 increase physical energy 27 improve mood 18 and alleviate stress 9. Conclusions As in the general U.S. population, coffee is the primary source of caffeine intake among the college students surveyed. Energy drinks provide less than half of total daily caffeine intake but more than among the general population. Students, especially women, consume somewhat more caffeine than the general population of individuals aged 19-30 y but less than individuals aged 31-50 y.
- Organic Chemistry