Runner’s Diet – Principles and Meal Plan. What to Eat Before Running and What After?

If you think a runner’s diet means constantly denying yourself pleasure and eating nothing but salad, then… you’re very mistaken! Sure, proper nutrition that supports pushing past your limits can be demanding, but it definitely doesn’t mean boredom or giving up all enjoyment. It’s much closer to a culinary adventure.

In this guide, you’ll learn what to eat before training so you don’t “die” in the first kilometre, and how to refuel after a run so you recover faster and have the energy for your next workouts. After reading this article, your fridge might just become your best friend on the road to reaching new running goals. Let’s begin! Find out what, when and how to eat to support your training and improve your running form.

The role of diet in a runner’s training. What is worth knowing?

We’re not exaggerating when we say that diet is almost as important for runners as training itself. Why? Because proper nutrition gives your body the “fuel” to cover more kilometres. A well-chosen, balanced and properly managed diet affects not only your results, but also recovery and immunity. Thanks to it, you can progress faster and avoid injuries.

How does an amateur runner’s diet differ from a professional’s?

The main difference lies in the details and the precision of counting macronutrients. Professionals, meaning people for whom running is in fact a profession, treat their bodies like tools of the trade. That’s why they need to weigh every gram of food and even plan meals down to the minute. Amateurs can, and often do, take a more flexible approach. Yes, they focus on the foundations of healthy eating, but they don’t have to be nearly as strict.

How many calories on a runner’s diet? How to calculate your kcal needs?

There is no single universal calorie number for all runners. Your needs are really the result of several important factors, including: your weight, training intensity and the goal you want to achieve. It could be fat loss, as well as maintaining or even building new mass.

In general, to know how many calories you should eat, you first need to determine what you want to achieve.

Lose weight – calculate your basic calorie needs, add your average calorie expenditure during running (usually around 500–1000 kcal for each hour), and then subtract 200 to 400 kcal.
Maintain weight – calculate your basic needs and add the average amount needed during the run.
Gain mass – do the same as above, but include an additional 200–500 kcal “on top” (depending on how much you want to “gain”).

What macronutrients should be included in a runner’s menu?

Your runner’s diet should be based on a few key pillars. These include:

Carbohydrates, which are the main source of energy during running. Make sure they make up around 55–65% of your diet.
Protein, which is essential for muscle recovery and avoiding injury. Its share should be around 15–20%.
Fats, which actively support joint function and hormone production. They should be within the 20–25% range.

Fibre is also an important component, as it supports digestion and helps you feel full.

What products and meals should be included in the meal plan?

A runner’s kitchen should be colourful and varied. It should be based on foods such as groats, rice and wholegrain pasta. It is also worth adding lean meat and fish, dairy, vegetables and fruit.

What should you avoid? In particular, say “NO” to highly processed products and those with a lot of added sugar in the ingredients. Try to choose natural sources of energy.

How often should you eat?

From our perspective, the best rhythm is 4–5 meals a day. We personally believe it’s worth eating every 3–4 hours to maintain a steady energy level. In general, you shouldn’t run either on a full stomach or completely hungry. In our view, the key is to match your mealtimes to your training plan – you set the pace, not the other way around!

What to eat before running?

If you don’t want unpleasant and troublesome “adventures” to catch up with you during activity, we recommend being very careful.

Before a run, try to eat lightly and sensibly. Your ideal meal should consist of easily digestible carbohydrates, found for example in bananas, oats, or even toast with jam. When should you eat them? Ideally 1 to 3 hours before your planned start.

What should you avoid? Above all, fatty and heavy-to-digest foods. If you give in to them, unplanned stops in the bushes are probably waiting for you.

What to eat after running?

Here you can allow yourself a little more. But remember one important rule: what you eat within the first hour after training is crucial for your recovery. It’s best to go for a combination of protein and carbohydrates. A protein shake with banana, a turkey sandwich, or even yoghurt with fruit and cereal will work perfectly in this role.

After a run, you no longer need to worry as much about how “light” the meal is, because your body will already be ready for something more substantial.

Meal plan for a runner – sample menu

From our perspective, a good nutrition plan should be simple, nutritious, repeatable, but under no circumstances does it have to be monotonous. Here are some examples:

First breakfast: porridge with banana and honey, coffee.
Second breakfast: wholegrain sandwich with avocado spread, a handful of nuts.
Lunch: wholegrain pasta with chicken and vegetables.
Pre-run meal: banana and a small energy bar.
Post-workout meal (dinner): protein shake, rice with salmon and spinach.

What if you prefer running in the morning? Here is a suggested meal plan.

Pre-run meal: banana shake with oats.
Breakfast (after training): egg omelette, wholegrain toast, tomato.
Second breakfast: Greek yoghurt with granola and fruit.
Lunch: salad with quinoa and turkey breast.
Dinner: wholegrain wrap with hummus and vegetables.

What about evening training?

First breakfast: porridge with peanut butter and blueberries.
Second breakfast: smoothie with spinach and chia seeds.
Lunch: chicken breast with sweet potatoes and broccoli.
Pre-run meal: small yoghurt and banana.
Dinner (after the run): buckwheat groats with salmon and mixed vegetables.

On a day intended for recovery, you can treat yourself to, for example:

Breakfast: oat pancakes with cottage cheese and honey.
Second breakfast: graham bread sandwiches with tuna spread.
Lunch: risotto with chicken and vegetables.
Afternoon snack: protein shake with fruit.
Dinner: scrambled eggs with mushrooms on wholemeal bread.

Remember that the above list contains only suggestions, which you can freely change, modify and adapt to your preferences.

Diets, exercises, training and more

Are you looking for more tips to help you become a better athlete? Regardless of your age, gender or the goals you want to achieve? Visit the SMMASH blog regularly, where you’ll find plenty of valuable articles about physical activity and more. We also encourage you to explore our store’s range, including men’s and women’s sportswear.