Weight Loss Clinical Trial
Official title:
The Beef WISE Study: Beef's Role in Weight Improvement, Satisfaction, and Energy
This is a 6 month long study to evaluate the inclusion or exclusion of beef within a weight loss program.
This study will compare two protein sources: proteins to include beef as the sole source of
red meat compared to proteins excluding red meat within the context of an effective
higher-protein weight loss and maintenance program derived from the Colorado Diet.
All subjects will participate in a group-based program consisting of 16 weekly classes in
3-phases designed to produce weight loss and teach participants how to achieve a lifestyle to
keep weight off permanently. All groups will be closed (same subjects, same leader) and will
consist of 20 participants. Participants in both groups will receive instruction in cooking,
recipes, and shopping instruction (using our grocery laboratory). This training will include
strategies, tips and preparation techniques for preparing high protein meals according to
their assigned groups. All subjects are given exercise plans and all subjects will receive
memberships to the Anschutz Health and Wellness Center fitness center for the duration of the
study.
After completion of the 16-week program, subjects will be asked to follow the program on
their own for an additional 2 months.
This is a randomized study involving 120 study subjects (60 per arm). The investigators will
compare the efficacy of inducing weight loss of two treatment arms derived from the Colorado
Diet. Subjects will be randomly assigned to one of two study arms and instructed to follow
the higher-protein diet by participating in weekly group classes for the first four months of
the study. There will be 6 classes of 20 subjects each (three classes for each treatment
group). Subjects will be followed in the study for 6 months. Subjects will be randomized into
one of two treatment groups as follows:
- Group 1(SOS+B): Subjects will participate in a State of Slim group class, receive a
State of Slim book (describing the Colorado Diet), and will receive stipends to be used
to help purchase protein food items allowed in the Colorado Diet as modified. The
Colorado diet is a high protein (estimated 120-160g/day), low carb and low fat diet.
Subjects will be directed and instructed to include beef as their sole source of red
meat as a protein source during the study. Subjects will follow the diet protein
guidelines, but will be directed and instructed to consume 4 or more servings of beef
per week and instructed not to consume any other red meats. Other red meats to be
avoided include pork, veal, lamb, buffalo and venison. Subjects will be advised to use
the monetary stipends to purchase items from the lists of acceptable foods from the SOS
book (to include beef products). Processed beef items will be allowed as identified by a
list provided to the subjects.
- Group 2 (SOS): Subjects will participate in a State of Slim class, receive the State of
Slim book (describing the Colorado Diet), and will receive stipends to be used to help
purchase protein food items allowed in the Colorado diet as modified. Subjects will be
directed and instructed to exclude beef and instructed not to consume any other red
meats. Other red meats to be avoided include pork, veal, lamb, buffalo, and venison.
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