Meta-analysis shows dose-response between protein intake and muscle strength

Writing in Sports Medicine – Open, ​the researcher from Meiji and Waseda University added that protein intake must be coupled with resistance training to see a significant improvement in muscle strength.

This is said to be the first time that a dose-response was found between protein intake and muscle strength.

Previous studies have clarified the detailed relationship between muscle mass and protein intake, but in this study, we focused on muscle strength, which is the force exerted by muscles.” the company said.

Muscle strength is closely related to athletic ability, daily movement, and prevention of falls, while muscle mass is related to the activation of various chemical reactions throughout the body, such as basal metabolism, and the reduction of the risk of metabolic syndrome.

“Increased muscle strength leads to improved athletic performance and a lower risk of falls, and many studies have reported that people with strong muscle strength have a lower risk of developing cardiovascular disease, cancer, and even death in the future.

“While increasing one or the other alone has health benefits, we believe that a combination of sufficient protein intake and training can lead to a healthier body.”


Eighty-two research papers found on the databases PubMed and Ichushi-Web – an online academic article repository in Japan – were included in this meta-analysis.

These papers talked about randomized controlled trials (RCTs) investigating the effects of protein intake on muscle strength.


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