Iron deficiency occur in over 50% of young female athletes - Plus Vitamin B

Staying healthy is a key part of swimming fast.

I thought this was an interesting article as our swimmers start working harder 
through the season. Iron deficiency can occur in over 50% of young female athletes
https://www.swimmingworldmagazine.com/news/how-anemia-is-hurting-swimmers/

I'm also big on the   B Vitamin 
Energy and endurance levels are important for swimmers looking to perform their best. The demand for energy increases as the swimmer's intensity and stroke increase. The most important vitamins responsible for energy and other essential chemical reactions within the body are B vitamins.  livestrong.com by  ANTHONY ISAAC PALACIOS