Possible Clues:

• Nutritionally, something for youth, it's said
• What's needed to build muscle Dicky tore in leg
• Specialist associated with youth said to offer what a growing body needs
• About 15% of raw quinoa
• Nutritional compound for most of soccer team? I will tuck in
• Essential ingredient of food favouring energy stored in can
• Muscle builder
• Body building block
• Product of amino acids
• Dietary requirement