Fitness & exerciseNutrition

5 tips to help fuel your next workout

Learn what can help you feel your best during a workout—and what could slow you down.

Jan, 2026
LearnWorkout nutrition5 tips to help fuel your next workout
Slide 1
DON'T: Nosh a protein bar
DO: Fuel up with carbohydrates
DON'T: Fill up on fiber-rich foods
DO: Steer clear of fat

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A healthy diet is essential for providing the energy we need to power through daily activities, whether it’s a session in the gym or a long day at the office.

Inadequate nourishment, including lack of essential nutrients like carbohydrates, protein, and healthy fats, can leave you feeling sluggish. But don't be so quick to fill your stomach with just anything. Eating the wrong foods can cause weight gain, in addition to gas, bloating and discomfort—none of which you want to experience at the gym.

It's important to remember: Before you reach for a pre-gym snack, consider the type of workout you're gearing up for. Light or low-intensity workouts, like a 30- to 60-minute walk, don’t require an additional meal or snack. An eating plan that includes a combination of fruits and veggies, lean protein, whole grains, and healthy fats is enough.

Higher-intensity exercise may require some extra fuel. Collette Sinnott, RD, a registered dietitian with MountainView Hospital in Las Vegas, Nevada, breaks down some of the best and worst ways to prepare for your next workout.

And if you're new to exercise, chat with a healthcare provider (HCP) about pre-existing conditions, like diabetes. A good sweat can alter your blood sugar levels, and an HCP will be able to offer the best tips, tricks, and bites for you.

Written byTaylor Lupo.
Medically reviewed byAnn Wendling, MD, MPH.February, 2024
Sources: Danielle Mary Edwards + 15
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  2. MedlinePlus. Protein in diet. Reviewed June 8, 2021.
  3. Academy of Nutrition and Dietetics. Timing Your Pre- and Post-Workout Nutrition. Reviewed July 2019.
  4. Harvard TH Chan School of Public Health. Protein, carbs, and weight loss. Accessed September 29, 2022.
  5. University of Massachusetts. NIBBLE Directory: Carbohydrates. Accessed September 29, 2022.
  6. American Heart Association. Carbohydrates. Last reviewed April 16, 2018.
  7. Mayo Clinic. Water: How much should you drink every day? October 14, 2020.
  8. Academy of Nutrition and Dietetics. How to Fuel Your Workout. Reviewed October 2020.
  9. Harvard TH Chan School of Public Health. Fiber. Accessed September 29, 2022.
  10. Mayo Clinic. Dietary fiber: Essential for a healthy diet. January 6, 2021.
  11. University of Massachusetts. NIBBLE Directory: Fiber. Accessed September 29, 2022.
  12. NIH: National Institute of Diabetes and Digestive and Kidney Diseases. Symptoms & Causes of Gas in the Digestive Tract. Reviewed June 2021.
  13. American Heart Association. Food as Fuel Before, During, and After Workouts. January 2, 2015.
  14. Chen YC, Travers RL, et al. Feeding influences adipose tissue responses to exercise in overweight men. Endocrinology and Metabolism. July 2017; 313 (1), pages E84-E93.
  15. Vieira, A., Costa, R., et al. Effects of aerobic exercise performed in fasted v. fed state on fat and carbohydrate metabolism in adults: A systematic review and meta-analysis. British Journal of Nutrition. 2016. 116(7), 1153-1164.
  16. USDA. Dietary Guidelines for Americans: 2020-2025. December 2020.

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