Classic vs. High-Fat Intermittent Fasting Effects

Not Applicable

Completed

• Conditions: Obesity
• Interventions: Other: Diet therapy for low carb-High fat IF diet group; Other: Diet therapy for Classic IF diet group

• Registration Number: NCT06515639
• Lead Sponsor: Istanbul Bilgi University

Brief Summary

Poor eating habits contribute to weight gain and obesity, leading to numerous metabolic issues such as diabetes and cardiovascular diseases. The treatment of obesity involves lifestyle interventions that include dietary and nutritional modifications, physical activity, and behavioral therapy. Literature supports both carbohydrate and fat restriction in the treatment of obesity. In low-carbohydrate diets, less than 40% of energy is sourced from carbohydrates.Besides the dietary model, individual eating behavior can also influence the diet's outcomes. There is a significant relationship between eating behavior and food choices. Given that food choices can impact diet satisfaction, evaluating eating behavior is important when assessing dietary compliance.The literature includes studies demonstrating the effects of a classic intermittent fasting diet. However, no studies have compared the potential effects of intermittent fasting models based on the macronutrient distribution within their content. Therefore, this study aims to evaluate the effects of high-fat, low-carbohydrate intermittent fasting versus classical intermittent fasting on body composition, eating behavior, and diet satisfaction.

Detailed Description

Not available

Study Timeline

• Study Start: 2024-02-01
• Primary Completion: 2024-04-01
• Study Completion: 2024-05-15
• Status Verified: 2024-07
• Study First Submitted: 2024-07-16
• Study First Submitted QC: 2024-07-19
• Last Update Submitted: 2024-07-19
• Study First Posted: 2024-07-23
• Last Update Posted: 2024-07-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 44

Inclusion Criteria

• 18-65 years old
• no chronic disease
• female
• volunteering

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Exclusion Criteria

• hypoglycemia
• eating disorders
• pregnant and lactating women

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Low carb-High fat IF diet	Diet therapy for low carb-High fat IF diet group	The 16:8 intermittent fasting model, 10-30% carbohydrates and 50-65% fat dietary model applied.
Classic IF diet	Diet therapy for Classic IF diet group	The 16:8 intermittent fasting model, 45-60% carbohydrates, 10-15% protein, and 25-30% fat dietary model applied.

Primary Outcome Measures

Name	Time	Method
behavioral and cognitive components of eating	six weeks	The Three-Factor Eating Scale, used to measure the behavioral and cognitive components of eating, was developed by Cappelleri and colleagues. Its validity and reliability in Turkish were established by Karakus et al. The questionnaire comprises three factors: Uncontrolled Eating (UE), Cognitive Restraint (CR), and Emotional Eating (EE). Uncontrolled Eating (UE) refers to losing control over eating due to hunger or external stimuli and includes 9 items, with scores ranging from 9 to 36. Cognitive Restraint (CR) refers to the conscious restriction of food intake to control body shape and weight, encompassing 6 items, with scores ranging from 6 to 24. Emotional Eating (EE) examines overeating in response to negative emotional states such as anger, sadness, or stress, and includes 6 items, with scores ranging from 6 to 24. A higher score in any sub-factor indicates a greater dominance of the corresponding eating behavior.
diet satisfaction	six weeks	A number of questions are necessary for clinicians to evaluate their patients' or clients' diet satisfaction, as well as their compliance with the diet, based on their responses. The Diet Satisfaction Scale is designed to assess satisfaction with various aspects of any diet, such as hunger levels, desire to eat, food preparation, enjoyment, ease of adherence at home and away, food variety, budget compatibility, contribution to physical health, and sustainability. The scale was developed by Jospe et al, and its Turkish validity and reliability were established by Eskici and Yilmaz. It consists of 9 items with 5-point Likert-type response options ranging from 1 (strongly disagree) to 5 (strongly agree). Notably, the first item is reverse-scored (1=5, 2=4, 3=3, 4=2, and 5=1).
Body composition	six weeks	measurements of fat percentage

Trial Locations

Locations (1)

Gebze Municipality Family Counseling Center; 🇹🇷 Istanbul, Turkey