![]() ![]() For water use, female diets increased in footprint from baseline to follow up due to an increase in vegetable intake. Female students enrolled in the intervention course reported diets with statistically significant reductions in their footprints from baseline to follow up for greenhouse gases ( p = 0.011), land use ( p = 0.012), and phosphorus ( p = 0.045), and the female diets were statistically different from the control groups for those three boundaries. In addition, a 50-point modified Alternative Healthy Eating Index was calculated at baseline and follow up for all students. ![]() An extension of the previous study, this research evaluates the sustainability of female and male diets in both the intervention and control groups from baseline to follow up with respect to the following planetary boundaries: greenhouse gases, land use, water use, nitrogen loss, and phosphorus use. Our previous study showed a statistically significant reduction in the dietary carbon footprint of students who had completed a college course on the connections between food and the environment compared to a control group enrolled in an unrelated course. While it is widely acknowledged that shifts in diet could play a large role in mitigating climate change with important health co-benefits, knowledge on how to accomplish these shifts is lacking. Civil and Environmental Engineering Department, University of California, Los Angeles, Los Angeles, CA, United States.Whitener, Brian Cook, Ingrid Spielbauer, Paula Karyn Nguyen and Jennifer A. ![]()
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