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Effects of a 12-Week Individualized Energy-Restricted Diet on Perceived Stress and Serum Cortisol in Adults With Overweight or Obesity
Sponsor: Acibadem University
Summary
This prospective interventional study investigated changes in perceived stress, serum cortisol concentrations, body weight, and body composition during a 12-week individualized energy-restricted dietary intervention in adults with overweight or obesity. Participants followed an individually prescribed Mediterranean-style energy-restricted diet and attended weekly follow-up visits throughout the intervention. Body weight and body composition were assessed at weekly follow-up visits, while perceived stress and biochemical parameters, including serum cortisol, were evaluated at baseline and at the end of the 12-week intervention. Sleep quality and physical activity were also assessed at baseline. The study further examined whether perceived stress, serum cortisol, sleep quality, and physical activity were associated with the magnitude of body weight and fat mass loss achieved during the dietary intervention.
Official title: Perceived Stress, Sleep Quality, and Serum Cortisol During a Twelve-Week Individualized Energy-Restricted Diet in Adults With Overweight or Obesity: A Single-Arm Prospective Study
Key Details
Gender
All
Age Range
18 Years - 49 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2020-07-01
Completion Date
2022-10-01
Last Updated
2026-10-14
Healthy Volunteers
No
Conditions
Interventions
Energy-Restricted Mediterranean-Style Diet
Participants followed an individually planned energy-restricted Mediterranean-style diet for 12 weeks. Energy requirements were calculated individually. The prescribed macronutrient distribution was 45-55% of total energy from carbohydrates, 15-20% from protein, and 25-30% from fat. The diet consisted of two to three main meals and two to three snacks per day, with meal distribution adapted to each participant's daily routine. Participants attended weekly follow-up visits, during which adherence was assessed and the dietary plan was adjusted as needed.
Locations (1)
Samsun FBM tıp merkezi
Samsun, Turkey (Türkiye)