Eating for Your Workout: A Simple Guide to Before, During, and After

You showed up. You got the workout in. And then you stood in the kitchen, wondering whether to eat something, drink something, or get on with your day.

You're not alone. Most people are figuring this out as they go, grabbing whatever's around and hoping it works, and honestly, that approach gets you pretty far. But if you've been showing up consistently and you're not feeling the energy, recovery, or progress you want, fueling is usually where the gap is hiding.

The good news is you don't need a meal plan, a supplement stack, or a degree in nutrition to get this right. You need a few simple anchors, and once they're in place, the whole thing starts to click.

Before Your Workout

The goal before training is enough fuel to feel strong without feeling full. If you're heading to your workout within the hour, keep it small and easy to digest. Half a banana with peanut butter, a piece of toast with honey, a few bites of oatmeal. You're not fueling a marathon, you're just topping off the tank. If you ate a real meal two or three hours ago, you're already set, so trust it and go.

For early morning campers, even a few bites can change how the workout feels. You don't have to force a full breakfast at 5 am, but a little something in your system makes a real difference by the time you hit the third round, and the research backs that up.* 

What you want to skip right before training is anything heavy, greasy, or super high in fiber. Save those for later in the day when you have time to digest.

During Your Workout

For a regular 45 to 60-minute CG workout, water is all you need. Your body has plenty of fuel on board for that kind of session, so there's no need for gels, sports drinks, or anything else. Just sip water and keep moving.

The exception is heat. If you're training outside in warm weather or sweating heavily, electrolytes start to matter. Sodium, potassium, and magnesium are what your muscles actually need to keep firing, and water alone doesn't replace what you sweat out.*

An electrolyte supplement or a low-sugar sports drink can be the difference between finishing strong and dragging through the last 15 minutes.

After Your Workout

You've probably heard about the "30-minute window," and here's the truth: it's not nearly that strict. Newer research shows your recovery window is more like a few hours, not minutes*, so you can take a breath. You've got time to actually eat something real.

What you're after is protein and carbs together within a couple of hours. Protein helps your muscles rebuild, and carbs replace what you burned and help you feel like a human again later in the day. That can look like Greek yogurt with granola and berries, two eggs with toast and fruit, a protein shake with a banana, leftover chicken and rice from last night, a turkey sandwich, or cottage cheese with pineapple.

Nothing fancy, nothing expensive, just real food that gets the job done. Aim for around 20-40 grams of protein after training, which research consistently points to for muscle recovery and growth.*

A Quick Word for Women

Women's bodies aren't just smaller versions of men's, and your fueling shouldn't be either. There are a few real differences worth knowing, especially if you've been doing things a certain way because someone on the internet told you to.

For starters, training fasted is harder on women. Research from Dr. Stacy Sims shows that women perform better and recover faster with even a small bite before training*, so if you've been forcing yourself to train on an empty stomach because you heard it burns more fat, you can let that go.

Even 100 to 150 calories before an early workout can change how you feel for the rest of the day. Post-workout protein also matters more for women and a little sooner.

If you're over 40 or navigating perimenopause, getting protein in within 30 to 45 minutes of finishing helps your body do what it's trying to do*, and you'll want to aim higher on the amount, closer to 30 to 40 grams after harder sessions instead of the standard 15.

If your hormones are shifting, your fueling will need to shift with them. That's a much bigger conversation than one section can hold, but the short version is this: eat more protein, fuel your workouts on purpose, and stop trying to do all of this on too little food.

A Quick Word for Men

Men generally have more wiggle room with timing. Training fasted is easier on the body, and the post-workout window is more forgiving, so the same principles apply but with less urgency. The bigger miss for most men isn't timing at all; it's simply not eating enough protein overall. Getting 30 to 40 grams spread across three or four meals a day will move the needle more than any single perfectly timed shake.

If You're Training for HYROX, DEKA, or Elevation Everest

Competition training is a different beast. Your sessions are longer, your output is higher, and your fueling has to match the work you're putting in.

Before long sessions of 90 minutes or more, eat a real meal an hour and a half to two hours out: oatmeal with protein powder, eggs and toast, a rice bowl with chicken. You need carbs to burn and a little protein to hold you over for the duration. During those long sessions, keep the engine running with simple carbs like half a banana, a couple of dates, an electrolyte drink with carbs, or energy chews.

The general guideline is 30 to 60 grams of carbs per hour for endurance work over an hour*, and you'll feel the difference when you actually fuel through it instead of trying to grit it out.

After long sessions, eat a real meal within an hour. You're looking at 30 to 40 grams of protein and a real serving of rice, potatoes, pasta, or bread. This is when your body does the rebuilding, and skimping here is why you wake up the next day feeling wrecked.

And on race day, never try anything new. Practice your fueling in training so you know exactly what your stomach can handle when your heart rate is high. Race morning is not the time to experiment.

Don't Forget Hydration

You can nail every meal and still feel awful if you're under-hydrated. A solid daily target is about half your body weight in ounces of water, and more if you're training outside or sweating a lot. If you're a heavy sweater or training in the heat, add electrolytes a few times a week. This isn't about marketing or trends; it's about replacing what your body actually loses.*

The Takeaway

Snack before, water during, protein and carbs after, and scale it all up when your training scales up. You're already doing the hard part by showing up, and fueling well is just one more way to make that work pay off. Pay attention to what makes you feel strong and do more of it. Pay attention to what makes you feel sluggish, and adjust accordingly. That's how this actually works.

References

• Aird, T. P., Davies, R. W., & Carson, B. P. (2018). Effects of fasted vs fed-state exercise on performance and post-exercise metabolism: A systematic review and meta-analysis. Scandinavian Journal of Medicine & Science in Sports, 28(5), 1476-1493.

• McDermott, B. P., et al. (2017). National Athletic Trainers' Association Position Statement: Fluid Replacement for the Physically Active. Journal of Athletic Training, 52(9), 877-895.

• Schoenfeld, B. J., Aragon, A. A., & Krieger, J. W. (2013). The effect of protein timing on muscle strength and hypertrophy: a meta-analysis. Journal of the International Society of Sports Nutrition, 10(1), 53.

• Morton, R. W., et al. (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine, 52(6), 376-384.

• Sims, S. T., & Yeager, S. (2016). ROAR: How to Match Your Food and Fitness to Your Female Physiology for Optimum Performance, Great Health, and a Strong, Lean Body for Life. Rodale Books.

• Sims, S. T., et al. (2023). International Society of Sports Nutrition position stand: nutritional concerns of the female athlete. Journal of the International Society of Sports Nutrition, 20(1).

• Thomas, D. T., Erdman, K. A., & Burke, L. M. (2016). American College of Sports Medicine Joint Position Statement. Nutrition and Athletic Performance. Medicine & Science in Sports & Exercise, 48(3), 543-568.