Foods That Can Cause Fatigue

Bananas are a good source of potassium, fiber, and carbohydrates. This combination of carbohydrates and fiber provides a long lasting source of energy.
In fact, according to one small studyTrusted Source, trained cyclists who ate bananas performed equally to those who consumed sports drinks during a 47-mile time trial. The researchers concluded that bananas are a good source of energy, specifically before and during long periods of exerciseWatermelons are a great source of hydration. According to the Agricultural Marketing Resource Center, watermelons are 92% water and contain vitamin C, vitamin A, and many other nutrients.
Dehydration can increase feelings of fatigue. However, a reviewTrusted Source
 from 2010 suggests that proper hydration increases mental alertness and improves well-being.Kale is a leafy green vegetable rich in vitamins, antioxidants, and iron.
Red blood cells in the body contain iron. This mineral is essential for carrying oxygen around the body for cells to use as energy. For this reason, low levels of iron can cause a lack of energy.
According to the USDATrusted Source
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, 1 cup of raw kale also contains plenty of potassium and vitamin A.