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NNS beverages may match water in weight control

Adults assigned to nonnutritive sweetened beverages or water maintained weight reductions through 104 weeks, with no statistically significant difference between groups.

  • By

  • Andrea Surnit

  • October 6, 2026

  • 4 min

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  • 1

    The SWITCH trial randomly assigned 493 adults to consume either water or nonnutritive sweetened beverages for weight management.

  • 2

    After 104 weeks, body weight decreased by 3.7 kg in the water group and 4.8 kg in the NNS beverage group, with no significant between-group difference.

  • 3

    Both groups experienced reductions in waist and hip circumference, but no statistically significant differences were observed between them.

  • 4

    The water group showed greater reductions in glycated hemoglobin and diastolic blood pressure, while total cholesterol increased in the NNS group.

  • 5

    The study faced limitations, including participant attrition and lack of race and ethnicity data, which may affect generalizability.

Original Source(s)

NNS beverages may match water in weight control

  • by Andrea Surnit

  • October 6, 2026

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