Author(s): Peters JC, Wyatt HR, Foster GD, Pan Z, Wojtanowski AC, Vander Veur SS, Herring SJ, Brill C, Hill JO | Publication Year: 2014
The results of this study suggest that water is not superior to
non-nutritive sweetened (NNS) beverages for weight loss, in the context
of a comprehensive behavioural weight loss plan.
The purpose of this trial was to directly compare water, the “gold
standard” beverage for supporting good health, with NNS beverages in the
context of weight loss. This 1-year prospective, randomized trial
included an equivalence design in which study groups received either
water or NNS beverages. The trial includes a 12-week weight loss phase,
followed by a 9 month weight maintenance phase. The results of the
weight loss phase are presented in the current article.
During the study, all 303 participants (279 completed the study)
received a comprehensive, cognitive-behavioural weight loss intervention
entitled, The Colorado Weigh, which included group meetings,
instruction on behavioural weight loss strategies and weekly weigh-ins.
Each participant was also given calorie targets, as well as weekly
physical activity targets.
Paired comparison between the two study groups indicated that the NNS
group had lost significantly more weight than the Water group after 12
weeks (5.95 kg vs 4.09 kg (13.1 lbs vs. 9.0 lbs). In the NNS group 64.3%
of participants lost > 5% of their of body weight, as compared to
43.0% of participants in the Water group.
The authors concluded that their results suggest that NNS beverages can
be part of an effective weight loss strategy, and that the consumption
of such beverages will not undermine short-term weight loss efforts. A
longer term follow-up of this randomized cohort is currently underway,
and should provide insight into the utility of NNS beverages in weight