![3 Foods That Cause Fatigue 3 Foods That Cause Fatigue](https://i.imgur.com/dtpslYM.jpg)
Sugary drinks and processed foods can lead to fatigue. These foods are largely processed, and lack the fiber that gives you sustained energy. In addition, they can cause a rapid spike in blood sugar, which causes a subsequent drop. If you are experiencing fatigue, you should avoid these foods and replace them with foods high in fiber.