Fueling Your Workout

June 16, 2015 by Liz

by Registered Dietitian, Kristen Klewen Kristin

As a Registered Dietitan at Club Fit, I frequently get asked, “What should I eat before and after a workout?” This question depends on the client, but there is some common knowledge I can share that apply pre- and post-workout nutrition when it comes to fueling your workout!

1. Don’t skip the carbohydrates!
• Carbohydrates are known as fuel for your “engine” (ex. Muscles). The harder you work your engine, the more carbohydrates you need.

2. How soon should you be eating before a workout?
As a general rule of thumb, it is best to not eat immediately before you workout, because while your muscles are trying to function, your stomach is simultaneously trying to digest the food. This competition of demands is a challenge for optimal performance. Eating too close to a workout may cause you to experience some GI discomfort while you train or play. Ideally, you should fuel your body about 1 to 3 hours pre-workout, depending on how your body tolerates food. Experiment and see what time frame works best for your body. If you’re a competitive athlete, this is something you need to explore during your training days and not during game day. Notice that each of the suggestions below includes protein and carbohydrate. We know that carbohydrates are fuel, and are a necessary part of our diet. Protein is what rebuilds and repairs, but also “primes the pump” to make the right amino acids available for your muscles. Getting protein and carbohydrates into your system is even more vital post workout.
• Below are some suggestions for pre-workout fuel:
– A peanut butter and banana or PBJ sandwich
– Greek yogurt with berries
– Oatmeal with low-fat milk and fruit
– Apple and peanut or almond butter
– Handful of nuts and raisins (two parts raisins: one part nuts)

3. Post Workout Nutrition:
Your body uses stored energy (glycogen) in your muscles to power through your workout or game, but after that workout, you need to replenish the nutrients lost. What to do?
• As soon as possible post workout, get carbs and protein immediately into your body. This gives your muscles the ability to replenish the glycogen they just lost through training and helps your tired muscles rebuild and repair with the available protein and amino acids.
• I suggest fueling within 15 to 20 minutes post training with a 3:1 ratio of carbohydrate and protein for optimal muscle repair and recovery, eating a regular mixed meal 3 to 4 hours after.
• Post-workout meals include:
– Post-workout recovery smoothie (or post-workout smoothie made with low-fat milk and fruit)
– Low-fat chocolate milk
– Turkey on a whole-grain wrap with veggies
– Yogurt with berries

4. Take Home Points
• Your body needs carbohydrates to fuel your working muscles.
• Protein is there to help build and repair.
• Get a combination of the two in your body 1 to 3 hours pre-workout and within 20 minutes or so post-workout.
• Never try anything new on race or game day!! It’s always best to experiment during training to learn what works best for your body.