On the day of admission, the participants completed several questionnaires to assess their depressive symptoms and physical activity and were interviewed about stressful events on the prior day. Thirty-one women reported at least one prior day stressor on one visit and 21 reported stressors at both visits. Six women reported no stressors.
Most of the reported stressors were interpersonal in nature: arguments with co-workers or spouses, disagreements with friends, trouble with children or work-related pressures.
The research meal consisted of eggs, turkey sausage, biscuits and gravy roughly equivalent in calories and fat to a loaded two-patty hamburger and French fries at a fast-food restaurant. Participants were required to eat the entire meal within 20 minutes.
"This is not an extraordinary meal compared to what many of us would grab when we're in a hurry and out getting some food," said Kiecolt-Glaser, also director of the Institute for Behavioral Medicine at Ohio State.
The control for comparison in this randomized trial was that one meal contained saturated fat and another was high in a different kind of fat: sunflower oil containing monounsaturated fat, which is associated with a variety of health benefits.
"We suspected that the saturated fat would have a worse impact on metabolism in women, but in our findings, both high-fat meals consistently showed the same results in terms of how stressors could affect their energy expenditure," said Martha Belury, professor of human nutrition at Ohio State and a co-author of the study.
Before the meal, participants rested for 30 minutes and their energy expenditure or calories burned by converting food t
|Contact: Jan Kiecolt-Glaser|
Ohio State University