What every trail runner should know about iron deficiency

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On August 23, a beaming Caroline Boller won the Santa Rosa Marathon in 2 hours 45 minutes. At the same race, just two years ago, she had bombed her marathon debut. The 40-year-old attorney and mother from Temecula, California, finished the 2013 Santa Rosa Marathon in 3:53, nearly a half hour off her goal—which, given her training times, should have been in sub-3:30 territory. (c) Trail Runner

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