6. Banana
Banana is an excellent fuel source. The glucose-rich content in bananas is loaded with healthy, digestible sugar, which provides prompt energy. In addition, the high potassium content helps to prevent muscle cramps during a workout. The essential amount of carbs that come with bananas makes it a favorite pre-workout fruit intake for many bodybuilders and athletes. Many have reported a much-improved performance at the gym after they have a banana 10 to 15 minutes before a workout.