These are some great tips for maintaining energy levels throughout the day!
1- Small, frequent meals
2- Listen to your body’s hunger and fullness cues
3- Balanced plates
4- Snack!
5- Skip soda, sugary coffee, or energy drinks as an energy source because they come with a crash
Check out the article for more details from the Academy of Nutrition and Dietetics:
http://www.eatright.org/resource/food/nutrition/healthy-eating/eating-to-boost-energy