Food choice is foundational for sustaining energy, as calories are metabolized into ATP, the primary source of energy that fuels cell needs. Healthy, nutrient dense dietary patterns support the energetic demands of life, prevent conditions that increase risk for fatigue, and have been used in studies to reduce fatigue and increase energy.[1][2] Some foods contain nutrients at doses shown to support energy and resist fatigue either in general (e.g., iron in red meat) or during exercise (e.g., nitrates in spinach).[3]
How could diet affect energy and fatigue?
Written by:
Fact-checked
by:
•Last Updated: May 16, 2025
Diet significantly affects energy levels and fatigue because nutrient-dense foods provide essential calories that are converted into ATP, which is the body's main energy source. Certain nutrients, like iron in red meat and nitrates in spinach, can specifically help support energy and combat fatigue.