My sister is a 48-year-old vegetarian and a marathoner. Recently, she was feeling fatigued, and a friend suggested she have her iron levels tested. The results showed that her ferritin levels were low. What does this mean? Should she worry?
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My sister is a 48-year-old vegetarian and a marathoner. Recently, she was feeling fatigued, and a friend suggested she have her iron levels tested. The results showed that her ferritin levels were low. What does this mean? Should she worry?