The Effect of Non-Nutritive Sweeteners' Consumption on Body Weight: A Randomized-Controlled Trial

Area of Science:

• Metabolic Health and Nutrition
• Dietary Interventions and Weight Management

Background:

• Non-nutritive sweeteners (NNS) are widely used sugar alternatives for caloric control.
• The metabolic effects and impact of NNS on body weight remain inconsistently reported in scientific literature.
• Concerns exist regarding NNS potentially contributing to conditions like obesity.

Purpose of the Study:

• To investigate the effect of non-nutritive sweetener consumption on body weight.
• To determine if the effects of NNS on body weight vary among different types of sweeteners, specifically sucralose and stevia.
• To assess the safety and efficacy of NNS as part of a weight management strategy.

Main Methods:

• A 6-week randomized-controlled trial involving 20 healthy participants.
• Participants were assigned to consume sucralose, stevia, or no sweeteners (control group), all on an isocaloric diet.
• Anthropometric measurements, including weight and body mass index, were recorded at baseline and follow-up visits.

Main Results:

• Significant decreases in weight and body mass index were observed in the control and sucralose groups.
• The stevia group did not show statistically significant changes in weight or body mass index.
• No significant differences in weight loss were found between the NNS groups and the control group.

Conclusions:

• Sucralose and stevia consumption contributed to weight loss, with significance reached in the sucralose group.
• Neither sweetener demonstrated a superior benefit over the other or the control group in terms of weight loss.
• Sucralose and stevia can be considered safe for weight management when integrated into a healthy lifestyle.