Weight loss attempts at Weight Watchers more successful than at hospital
Those who want to lose excess pounds of fat under supervision, have a tad more chance of success with commercial organizations such as the Weight Watchers than professionals who are attached to a hospital. That is the gist of a study published by researchers at the University of Western Australia in Nutrition Journal.
The researchers studied 467 people with a BMI of 27-35 who went on a weight loss diet for one year and tried to lose weight.
Half of the participants tried to lose weight by a hospital program. These study participants received guidance from trained nurses, who compiled a diet according to the official natitional guidelines, and tried to make the study participants more physically active.
The other of the participants joined the Weight Watchers. Commercial organizations such as the Weight Watchers have a somewhat different approach than hospitals, and are more free to deviate from the national nutritional guidelines.
The Weight Watchers organisation financed the study.
Both groups lost weight, but the Weight Watchers group [CP] lost 3.3 more kilos than the other group [SC].
Yet it was not the case that the Weight Watchers drew the participants more strictly than the supervisors of the hospitals. The energy intake of both groups did not differ from each other, you see above.
However, there were differences between the composition of the diet of both groups. The Weight Watchers gave their participants a diet with more fiber and more proteins. According to previously published studies, these two nutritional factors contribute to weight loss.
When the researchers determined the association between the weight loss of the participants on the one hand and their intake of fibers and proteins on the other, both factors contributed to their weight loss.
"Participation in a behavioural weight loss intervention leads to improvements in diet quality, and these were significantly greater among those attending a group-based commercial programme than those receiving support provided in primary care", the researchers summarize.
"Weight loss in both groups was associated with increased dietary fibre density and protein density, which occurred concurrently with reductions in absolute intakes of fat, carbohydrate and total energy, suggesting these are important dietary targets for weight loss."
Nutrition Journal (2018) 17:64.
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