Comparing advice to decrease both dietary fat and sucrose, or dietary fat only, on weight loss, weight maintenance...

Area of Science:

• Nutrition Science
• Public Health
• Obesity Research

Background:

• Overweight and obesity are significant public health concerns requiring effective dietary interventions.
• Understanding the impact of different dietary compositions on weight management and quality of life is crucial.

Purpose of the Study:

• To compare the effects of two distinct dietary advice strategies on weight loss, weight maintenance, and quality of life in Scottish women.
• To evaluate the efficacy of reduced energy, fat, and sucrose intake versus reduced energy and fat intake alone.

Main Methods:

• A randomized controlled trial involving 126 overweight/obese sedentary women.
• Participants were assigned to three groups: reduced energy/fat/sucrose, reduced energy/fat only, or a control group.
• Follow-up assessments were conducted at 3 and 9 months to measure dietary intake, body weight, body composition, and quality of life.

Main Results:

• Both dietary intervention groups significantly reduced energy intake, decreased percentage of energy from fat, and increased percentage of energy from carbohydrates and protein.
• Groups receiving dietary advice achieved significant reductions in body weight and body fat compared to the control group.
• Both interventions led to a significant increase in self-reported quality of life, with Group 2 (reduced energy and fat only) reporting more positive changes.

Conclusions:

• Dietary interventions focusing on reduced energy and fat intake are effective for weight reduction and medium-term weight maintenance in overweight women.
• The observed improvements in quality of life may predict better long-term adherence to weight management strategies.
• Reducing sucrose intake alongside energy and fat shows initial benefits but may not be sustained at 9 months.