There are also different ways to fuel for different activities:

• Cross country skiing: Because it’s hard to eat and drink while Nordic skiing, Larson recommends practicing taking in larger quantities of fuel and fluids in one sitting so you don’t have to stop as often.
• Mountain biking: Use a hydration backpack filled with a carb- and electrolyte-rich hydration mix so you can keep your hands on your handlebars.
• Running: It can be tough to carry enough fuel and fluids on long runs, so you could run in loops, have someone bike alongside you with bottles, or have drop bottles placed along your route before you run.