Summarize this article:

Carbs and protein help give your body energy so you don’t get exhausted while you’re out on your hike. Opt for something like oatmeal, eggs, pasta, and lean meat since they’re nutritious. Incorporate fruits and vegetables into your meal as well for additional carbs and natural sugars.Avoid overeating since you may feel uncomfortable while you’re out hiking.

Summary:
Eat a meal with carbs and protein before your hike.