What a Pro Mountain Climber Who Burns 10,000 Calories a Day Really Eats

A photo posted by Melissa Arnot (@melissaarnot) on Jul 31, 2016 at 12:38pm PDT Melissa Arnot‘s body needs a lot of fuel. The professional climber and Eddie Bauer guide made history earlier this year as the first woman to summit Everest without using supplemental oxygen. The 32-year-old’s latest feat? The 50 Peaks Challenge. She and…