What to Eat Before and After Running

Runner Nutrition: Simple and Effective

You don't need a special diet to run. What you need is to understand when and what to eat so you perform well, recover quickly and don't feel terrible during your run. This guide is practical, with no magic superfoods or unnecessary supplements.

Before Running (2-3 Hours Prior)

The goal is to arrive with energy but without a heavy stomach. Prioritize easily digestible carbohydrates, a bit of protein, and keep fat and fiber low.

Breakfasts before a morning run

Snacks before an afternoon run

If you run after work, eat something light 1-2 hours before:

• A banana or 2-3 dates
• A cereal bar (low fiber)
• Toast with turkey
• A handful of nuts + dried fruit

During the Run

Under 60 minutes

You don't need to eat anything. Just water if it's hot or the session is intense. A couple of sips every 15-20 minutes is enough.

60-90 minutes

You can have an energy gel or some dates around the 45-minute mark. Drink water regularly. Sports drinks help if you're sweating heavily.

Over 90 minutes (half marathon, marathon)

You need to replenish carbohydrates every 45-60 minutes. Options:

• Energy gels: 25-30g of carbs per gel. Easy to carry and digest.
• Banana or orange: Natural option, available at aid stations.
• Energy chews: More pleasant than gels for many runners.
• Sports drink: Hydration + carbs + electrolytes in one.

After Running (The Recovery Window)

The 30-60 minutes after running are the optimal window for recovery. Your body is craving nutrients: it needs carbohydrates to replenish muscle glycogen and protein to repair muscle fibers. The ideal ratio is 3:1 (carbohydrates to protein).

Recovery options

Hydration

Hydration is just as important as nutrition. Just 2% dehydration already noticeably reduces your performance.

• Before running: Drink 400-600 ml (14-20 oz) of water in the 2-3 hours before. Don't drink too much right before heading out.
• During: 150-200 ml (5-7 oz) every 15-20 minutes if the session lasts more than 30 minutes or it's hot.
• After: Drink 500-700 ml (17-24 oz) for every kg of weight lost during the run. A good indicator: your urine should be light yellow.
• Electrolytes: If you run for more than 60 minutes or sweat heavily, add mineral salts (electrolyte tablets, sports drink or a pinch of salt in your water).

5 Nutrition Mistakes Runners Make

• Eating too much before running: A heavy meal 30 minutes before heading out is a recipe for digestive disaster. Eat light and give yourself time.
• Not eating after running: Skipping the recovery window slows your progress and increases accumulated fatigue.
• Drinking too much water at once: Overhydration is real and dangerous. Sip gradually, don't chug half a liter in one go.
• Cutting out carbs: Carbohydrates are a runner's primary fuel. Drastically reducing them hurts your performance and recovery.
• Trying new things on race day: That gel you've never tried could ruin your marathon. Always train with what you'll use in competition.

Carlos Ruiz Founder

Runner since 2015. 3 marathons, 15+ half marathons. Founder of CorrerJuntos. I test every product we recommend and run every route we publish.

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