A recent study indicates that diet beverages with artificial sweeteners can be as effective as water for weight loss in overweight or obese adults.
A two-year randomized trial conducted by researchers at the University of Liverpool has revealed that diet drinks containing artificial sweeteners are as effective as water in supporting weight loss among overweight or obese adults. The study involved 493 participants aged 18 to 65, all with a body mass index (BMI) between 27 and 35, categorizing them as overweight or obese.
Participants were divided into two groups: one group consumed 22.3 ounces of water daily, while the other group received the same amount of diet soda containing non-nutritive sweeteners (approximately two cans) over a 104-week period. The diet beverages included a variety of options, such as low-calorie fruit drinks and flavored waters, primarily sweetened with aspartame, sucralose, and acesulfame potassium.
At the end of the two years, the results showed that individuals consuming diet beverages lost an average of 10.6 pounds, compared to an average loss of 8.2 pounds among those drinking water. Both groups managed to maintain a significant amount of weight loss over the two years, even during the final year when they no longer received regular weight-management support. Participants in both groups also experienced reductions in waist and hip measurements, as well as body fat, with no significant differences observed between the two groups.
Additionally, total cholesterol levels remained within a healthy range for both groups throughout the study. The findings were published in the British Journal of Nutrition.
Alix Turoff, a registered dietitian based in New York City, emphasized that the study does not imply that diet beverages directly caused weight loss. “Everyone in the study was participating in a structured weight-management program that included nutrition counseling, behavioral support, and physical activity recommendations,” she noted.
Turoff, who was not involved in the research, pointed out that the primary benefit of including diet beverages lies in their ability to serve as a substitute for higher-calorie options, rather than any inherent metabolic advantage. “If someone normally drinks 250 calories of regular soda and switches to zero-calorie soda, then they’re saving calories,” she explained.
Despite the promising results, Turoff cautioned that the study does not suggest that water and diet soda are nutritionally equivalent. “The study did not find significant between-group differences in hunger or sugar intake at the end of the trial, which is relevant because one common concern is that artificial sweeteners may increase appetite or lead to compensatory eating,” she added.
While Turoff still recommends water as the primary choice for hydration, she reassured that individuals need not fear diet drinks, as they do not automatically hinder fat loss or contribute to weight gain.
However, the study does have some limitations. It was conducted at a single location in England, and data on race and ethnicity were not collected, which may affect the generalizability of the findings. Of the initial 493 participants, only 220 completed the 104-week assessment. The second-year extension was voluntary, meaning those who continued may have been more motivated or likely to adhere to the program.
It is also worth noting that the trial was funded by the American Beverage Association, although the authors stated that the association did not participate in the study design, data analysis, or interpretation of the results.
Overall, the study adds to the ongoing conversation about the role of artificial sweeteners in weight management and hydration choices, suggesting that diet beverages can be a viable option for those looking to lose weight.
For further insights, refer to Fox News Digital.