Chocolate milk compared to plant-based beverages on body composition, in adolescent athletes, following resistance training

Project Overview 

Canada’s Food Guide places an increased emphasis on plant-based proteins; however, Canadians who consume a plant-based diet may be compromised because of intake of lower-quality protein. Consumption of high-quality protein is important during growth and development, especially in highly active individuals. This study will compare the effects of chocolate milk (a high-quality dairy protein) and a plant-based beverage (a lower-quality plant protein) on muscle, bone, and fat changes following resistance training.  

Over a period of six months, 114 adolescent boys and girls (12-17y) will consume one of these beverages after resistance training to see which better supports muscle mass, strength, and body composition. The findings could help shape future nutrition guidance for youth and highlight the role of dairy in young athletes.  

What Will the Research Team Do? 

The research team will study how chocolate milk compares to a pea-based beverage in supporting muscle and bone growth during resistance training in teens. The primary objectives of this study are to: 

• Test whether chocolate milk improves muscle mass, strength, and bone density more than plant-based beverages. 
• Assess if chocolate milk helps reduce fat mass after training. 
• Provide evidence to inform future updates to Canada’s Food Guide, especially for growing adolescents.