Ella is a 20 year old college student who lives in a

Last updated: 7/9/2022

Ella is a 20 year old college student who lives in a northern climate and does not consume dairy products. In the past year, she joined the school track team, which practices indoors. She had done track in high school, but it had been a few years since she had done this much running. After three stress fractures, her doctor suggested blood work, including the vitamin that aids in calcium absorption and bone density. Given Ella's nutrition preferences, indoor climate, and symptoms, which vitamin is most likely suspected for deficiency?