Nutrition changes with age. Higher energy is needed during growth and maturation, lower protien needs than adults and differences in micronutrients. As we enter adulthood and growth. slows the needs for energy reduces, our protien needs stay more consistent depending on any training undertaken. Recent research has shown that protein requirements may be raised in aging athletes and adults to prevent sarcopenia (age related reduction of skeletal muscle mass and function) in particular the amino acid leucine, which plays a central role in stimulating skeletal muscle anabolism. Other micronutrient needs may also change such as Vitamin D.