Is it alright for a 14 year old female to take beta alanine?

Safety & efficacy of: Beta-alanine supplements in people younger than 18 have not been studied; therefore, it cannot be recommended. The FDA approves Beta-alanine as a food, not a drug. A review of independent studies shows it doesn't ^ muscle strength or aerobic endurance, but it does slightly ^ the amount of time an athlete can perform high-intensity exercises like weight-lifting & sprinting without fatigue.