High-Protein Food Supplement Improves Body Composition in Overweight Adults
Author Information
Author(s): Christopher M Lockwood, Jordan R Moon, Sarah E Tobkin, Ashley A Walter, Abbie E Smith, Vincent J Dalbo, Joel T Cramer, Jeffrey R Stout
Primary Institution: University Of Oklahoma
Hypothesis
Can a high-protein, low-carbohydrate food supplement improve body composition and exercise benefits in overweight adults without energy restriction?
Conclusion
The high-protein food supplement significantly improved body composition and exercise performance in overweight adults over 10 weeks.
Supporting Evidence
- Participants consuming the food supplement reduced their carbohydrate intake by 27.2%.
- Fat mass decreased by 9.3% in the food supplement group.
- Muscle mass increased by 2.3% in the food supplement group.
- Time-to-exhaustion improved by 21.2% in the food supplement group.
- Total cholesterol decreased by 12.0% in the food supplement group.
- LDL cholesterol decreased by 13.3% in the food supplement group.
- 100% of participants in the food supplement group improved in fat mass, muscle mass, and time-to-exhaustion.
Takeaway
Eating a special protein shake while exercising helps people lose fat and gain muscle without cutting calories.
Methodology
Participants were randomly assigned to exercise only, exercise plus food supplement, or control groups and followed a 10-week program.
Potential Biases
Participants were not blinded to the intervention, which may influence their behavior.
Limitations
The study did not control for dietary intake outside the food supplement and exercise.
Participant Demographics
38 previously sedentary, overweight adults (19 females, 19 males) aged approximately 30-35 years.
Statistical Information
P-Value
p<0.017
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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