Eating frequency and body fatness in middle-aged men

Area of Science:

• Nutritional Science
• Human Physiology
• Public Health

Background:

• Understanding the impact of dietary patterns on body composition is crucial for public health.
• Previous research has yielded mixed results regarding the relationship between eating frequency and body fatness.

Purpose of the Study:

• To investigate the association between the frequency of eating occasions and body fatness indicators.
• To determine if this relationship persists after accounting for energy intake and other lifestyle factors.

Main Methods:

• A cross-sectional study involving 330 middle-aged men (45-64 years).
• Data collected via nutritional surveys (3-day records) and measurements of Body Mass Index (BMI) and Waist-to-Hip Ratio (WHR).
• Statistical analysis adjusted for confounders including total energy intake, macronutrients, age, education, smoking, physical activity, and dieting.

Main Results:

• A significant inverse relationship was observed between eating frequency and both BMI and WHR in the overall sample.
• Higher eating frequency (4-5+ meals/day) was associated with lower mean BMI (24.5 kg/m²) and WHR (0.93) compared to lower frequency (1-2 meals/day).
• These associations remained significant after excluding low energy records and dieters, and after adjusting for potential confounding variables.

Conclusions:

• Increased eating frequency is associated with reduced body fatness, specifically lower BMI and WHR.
• This effect appears to hold true even when total energy intake is kept constant (isoenergetic intake).
• Findings suggest that meal timing and frequency may be important dietary strategies for weight management.