Your body needs fuel to perform at its peak, and you need to push yourself to get the best benefits from HIIT. Try to eat a meal or snack three to four hours before your HIIT workout begins. If you work out in the morning, try a light snack such as peanut butter and a banana before you train.

LightFieldStudios / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.