Roxanne Vogel is GU's resident nutritionist / mountaineer, and in this episode of the GU Energy Labs Pinnacle Podcast, she's got tons of incredibly practical advice for athletes who want to perform at their peak. We talk about what it means to say “eating is training,” what to eat right before a big effort, coping with cramps, branched-chain amino acids, caffeine, speed-ascending ultra-high altitude volcanoes…and even her favorite flavor of GU.