How Beef Protein Boosts Muscle Growth and Performance in Bodybuilding

Abstract Summary

Objective: To assess the impact of omnivorous meals containing lean beef versus vegan meals on muscle protein synthesis in older adults.

Context: Evaluating how whole-food protein sources affect muscle maintenance is essential for dietary recommendations in bodybuilding.

Methods Used

Approach: A randomized controlled trial comparing muscle protein synthesis rates after consumption of isocaloric omnivorous meals with lean beef and vegan meals with matched protein content.

Data Collection: Postprandial muscle protein synthesis was measured using tracer methodologies.

Researchers' Summary of Findings

The omnivorous meal with lean beef resulted in a 47% higher muscle protein synthesis rate compared to the vegan meal, despite equal protein and caloric content. This suggests that beef protein may be more effective than plant-based proteins in stimulating muscle growth.