B. Adolescents need more calories and nutrients, especially if they are very inactive.
The answer is vitamins, because fruits and vegetables do not have lots of proteins ,and hardly any fats.
Keratin is what makes up hair, horns, claws, hooves and more. It additionally protects epithelial cells from damage or stress. However, keratin is extremely insoluble in water and organic solvents. You are unlikely to find it in said solvents.
I believe Blood or Oxygen
