There is a wide range of foods that are high in protein. High protein foods can include various fruits and vegetables, dairy products, meat, seeds, and more.
The RDA for protein is 46 grams for teenage girls and 52 grams for teenage boys per day. Although athletes may have higher protein needs than their peers.
Extra protein is useful after long bouts of exercise (>90mins). It helps speed muscle repair and glycogen replacement, leading to faster recovery. But the key.