My biggest challenge in plant-based eating isn’t taking in enough protein but taking in enough calories to replace those I burn on my training runs. I make a big effort to include enough calorie-dense foods in my diet—nuts and nut butters, seeds, avocados, starchy root vegetables, coconut milk, and oils such as olive oil, coconut oil, flaxseed oil, and sesame oil. When you’re eliminating so many foods in your diet, you need to be careful to include enough new ones to compensate.