The natural sugars and complex carbs in sweet potatoes provide instantly accessible energy while the fiber helps stabilize blood sugar once it enters your bloodstream.
Spinach and other leafy greens are rich sources of iron, a nutrient vital for delivering oxygen - and thus energy - throughout the body.
Have a spinach salad for lunch to power through the afternoon.
All bell peppers contain impressive amounts of the antioxidant vitamin C.
The crunch and mild sweetness make them the perfect vegetable for energy-boosting snacks and meals.
Lean cuts of beef are packed with iron, zinc and B vitamins - nutrients that help cells efficiently convert food into cellular energy.
Have a grass-fed burger instead of skipping lunch.