Swedish Obese Subjects (SOS) - An Obesity
Study
Weight Loss Study Aim
Swedish Obese Subjects (SOS) is a multidisciplinary project involving
aspects of obesity ranging from description of the severely obese state
to effects of surgical intervention on long-term mortality and morbidity.
Dietary studies, which represent an integral part of SOS research activities,
are the focus of this review. Due to the large number of obese subjects
included in the SOS data bases ( > 5000), an early priority of the
project was to develop a dietary assessment method which: (i) described
usual intake patterns; (ii) could be self-administered by subjects and
rapidly processed; and (iii) was equally valid in obese and non-obese
individuals.
Weight Loss Study Results
The SOS method has met these requirements and is now being completed by
all subjects at baseline and during the intervention, and by a non-obese
reference population. A number of dietary features distinguishing obese
subjects have emerged, including: elevated intakes of energy and energy-percent
fat; low consumption of alcohol, fruits and vegetables; high dietary disinhibition;
frequent consumption of light meals and snacks; and night eating. In the
surgical intervention group, a relatively high consumption of sweet foods
was associated with better weight loss and maintenance.
Weight Loss Study Conclusions
The SOS method appears to be less susceptible to obesity-related under-reporting
than traditional dietary methods, and if the distribution of foods and
nutrients can be assumed to be as unbiased as the energy intakes, this
method should make it possible to capture associations between diet and
obesity-related diseases in the future.
Source: Lissner L, Lindroos AK, Sjostrom
L. Department of Internal Medicine, Sahlgrenska University Hospital, Goteborg,
Sweden. 1997
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