If you have knee pain when you train, you might want to double up on your whey protein shakes.
A study published recently in the Scandinavian Journal of Medicine and Science in Sports showed that consuming whey protein can increase the size of tendons, theoretically protecting your knees from injury. In the experiment, scientists had two groups of trained men perform leg extensions three times a week for three months. One group drank 20 grams of whey hydrolysate during the workout, and the other group consumed carbs. After 12 weeks, the protein group not only experienced more growth in their muscles but also in the size of their knee ligament. Since tendon hypertrophy can lessen connective-tissue stress during exercise, whey protein is a prerequisite when recuperating from an injury and most likely contributes to joint health when taken on a daily basis.