Reference(s)
1. Source: http://www.nestle.in/nhw/healthy-living/kids/nutrition-for-kids-into-sports
2. Source: http://kidshealth.org/kid/stay_healthy/food/sports.html#
3. Source: http://www.momsteam.com/nutrition-tips-for-active-kids-playing-sports
4. Source: http://www.eatright.org/kids/article.aspx?id=6442470564