An implication of this limitation is that it is not known whether the more-favorable response in those assigned to a lower-carbohydrate diet may be due to better adherence or even greaterweight loss, aswas observed among participants for whom data were
available at all time points. The intervention and prepackaged foods were provided
without cost to the participants, as was also the case in Look AHEAD and other weight loss and diet intervention studies (4,31),