" Why is fat so important? Well, it helps your brain think, your inside organs work, your hair grow, your eyes see, and so much more. Without fat your body would simply not have the energy to get through puberty. And losing too much fat on our bodies can cause all kinds of problems like weak bones, damaged and dull hair, and even organ failure. "

― Sonya Renee Taylor , Celebrate Your Body (and Its Changes, Too!): The Ultimate Puberty Book for Girls