Effect of whey vs. soy protein supplementation on recovery kinetics following speed endurance training in competitive male soccer players: a randomized controlled trial
Kritikos S, Papanikolaou K, Draganidis D, Poulios A, Georgakouli K, Tsimeas P, Jamurtas AZ, Fatouros IG
Published in Journal of the International Society of Sports Nutrition
Key Findings
When total protein intake was already adequate, neither whey nor soy protein altered reduced glutathione or redox status recovery compared with isoenergetic placebo.
Conclusions
Protein supplementation does not further raise glutathione when baseline protein intake is sufficient.
Limitations
Very small sample (n=10), trained males only, short recovery window.
Supplements Studied
We compared the effects of whey vs. soy protein supplementation on field activity, performance, muscle damage and redox responses.
When total protein intake was already adequate, neither whey nor soy protein altered reduced glutathione or redox status recovery compared with isoenergetic placebo.
Outcomes Measured
We compared the effects of whey vs. soy protein supplementation on field activity, performance, muscle damage and redox responses following speed-endurance training in soccer players.
Study Details
Access Study
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.