As building blocks of muscle tissue, amino acids may help to prevent muscle damage and muscle breakdown, as well as improve muscle rebuilding. They might also help prevent fatigue which impacts performance.
In addition to helping with muscle growth after a tough workout, protein also helps prevent the loss of muscle mass — whether due to a low calorie intake or ageing.1 For this reason, even on your rest days your muscles can benefit from protein powder in your diet.
The main benefit of protein shakes is the fuel they provide to help build up muscle tissue after weight training. Research shows that protein supplements, along with a strength training routine, build and conserve muscle tissue as well as increase strength.
Collagen maintains your skin’s elasticity. This helps your skin snap back to its original state after you make thousands of facial expressions every day. As collagen decreases, the skin is more affected by these expressions, causing lines and wrinkles.
The energy-density of weight gainers makes them particularly useful for those with poor appetite or who struggle to eat large volumes of food, such as elderly individuals. It’s important to maintain muscle mass and protein intake as you age, since rates of muscle protein synthesis decline by around 44% in those over 60 years old.