Effects of Meal Energy Density on Body Measures and Metabolism in Women

Melike Nur Eroğlu

Status: Completed

Conditions: Overweight; Circadian Rhythm; Obesity; Metabolic Health; Appetite Regulation; Meal Timing

Treatments: Behavioral: Breakfast-Loaded Hypocaloric Diet; Behavioral: Dinner-Loaded Hypocaloric Diet

Study type: Interventional

Funder types: Other

Identifiers

NCT07066618

BASKENT-MEALTIME-2023

Details and patient eligibility

About

This study investigates whether the timing of energy intake during the day-specifically consuming more calories at breakfast or at dinner-affects body measurements, blood sugar levels, cholesterol, and feelings of hunger in women who are overweight or obese.

A total of 28 women participated in the study and were randomly assigned to one of two diet plans: one group consumed half of their daily calories at breakfast, while the other consumed them at dinner. Both groups followed a calorie-restricted diet for six weeks.

The goal of this research is to understand whether eating more in the morning rather than in the evening leads to better outcomes for weight control and metabolic health. Findings from this study may help health professionals make more effective meal timing recommendations for weight loss and improving blood sugar regulation.

Enrollment: 28 patients

Sex: Female

Ages: 20 to 45 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Women aged 20-45
• BMI ≥25 kg/m²
• Regular menstrual cycle
• No chronic disease or medication use
• PSQI ≤5 (Good sleep quality)

Exclusion criteria

• Pregnancy or lactation
• Gastrointestinal or metabolic disorders
• Shift workers, sleep disorders
• Medication affecting metabolism
• Weight change >4.5 kg in last 6 months

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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28 participants in 2 patient groups

Breakfast Group (BG)

Experimental group

Treatment:

Behavioral: Breakfast-Loaded Hypocaloric Diet

Dinner Group (DG)

Experimental group

Treatment:

Behavioral: Dinner-Loaded Hypocaloric Diet