Celebs like Arnold Schwarzenegger and Dwayne “The Rock” Johnson advocate a high-protein diet and suggest using protein-boosting beverages or supplements to protect yourself from the loss of muscle mass.
And research shows that muscle decline can begin in your 30s and 40s especially if you’re sedentary or obese - and the process picks up (unless you fight it hard) after age 65, when you may shed 8 p…