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Top Tips for Fuelling During Marathon Training: What You Need to Know

Elaura Kennedy

Updated: Jun 15, 2024

The Value of Fuelling Yourself Properly for a Marathon

Running a marathon is more than just a race; it demands significant dedication including changes in both diet and lifestyle. Many people, in their commitment to training, tend to overlook nutrition. However, when logging those training miles, maintaining a healthy diet is crucial for maximising your potential. The way you fuel your body dictates the outcome of your race, making nutrition an essential component to your training plans. 


Every person is different, and listening to your body and catering to your needs is key. Our unique differences mean there is no one-size-fits-all guide to the best diet and fuel options. By following these tips and adapting them to suit your preferences, you can achieve a well-rounded nutritious diet that optimises for performance in both training and on race day.  


The Importance of Having a Diet Plan

Training for a marathon requires a tremendous amount of energy so a well-structured diet plan goes a long way in ensuring you have the energy stores necessary for all your runs. Without adequate nutrition you may struggle to keep up with your training regime. Consuming a balanced diet helps you maintain stamina and strength and allows you to train harder and make steady progress towards your race goals. 



Not only do you need to be properly fuelled to tackle your training but it is also crucial for rest and recovery. In marathon training your body undergoes a lot of stress, particularly in the muscles, joints and ligaments. A healthy diet provides the nutrients necessary for muscle repair and recovery, reducing the risk of injuries. 


Sleep is also an important factor in training that can be heavily affected by diet. Having proper nutrition can improve your quality of sleep, allowing you to get the deep rest your body needs to properly recover from intense training sessions. Marathon training is as much a mental battle as it is a physical one and getting quality sleep helps to regulate mood and reduce stress. Having mental clarity is the key to staying motivated, making rest vital for both your mental and physical performance in training and on race day.


What Foods To Include

When creating your marathon training diet you should focus on adapting your current eating habits to become more balanced and varied. For your marathon diet you should include the five major food groups, making sure you consume a reasonable amount of each throughout the day. Eating plenty of balanced foods will allow you to be fully nourished and to maintain high energy levels.



Carbohydrates: Carbohydrates are the primary energy source for endurance activities. Prioritising carbohydrates will keep your energy stores high and keep you fuelled for your long runs.

Examples include: Oats, rice, pasta, cereal, bread and potatoes.


Protein: Aiding in muscle repair and recovery protein is important for helping your body adapt to the physical stresses training is subjecting it to. 

Examples include: red and white meat, fish, Greek yoghurt and tofu.


Fats: Fats provide the body a long-lasting energy source and support overall health.

Examples include: avocados, full fat dairy and oily fish.


Fruits and Vegetables: Aim to incorporate a varied number of fruits and vegetables into your diet to ensure you receive all the vitamins and minerals your body needs to stay fit and healthy. 

Examples include: leafy greens, berries and a wide range of others.


Hydration: Hydration is absolutely key to keeping your body functioning when training. With dehydration being the largest contributor to fatigue when running, it is important to drink plenty of fluids before, during and after all your training sessions and races.




Supplements 

Supplements can play an important role in marathon training by addressing nutritional needs that might not be met with diet alone. However it is important to remember that, whilst useful, supplements are not to be used as a substitute for food but rather a tool to help you optimise your abilities.


The Best Supplements for Training:

  • Electrolytes: Electrolytes help maintain hydration, muscle function, and energy production. They can be important in preventing muscle cramps and dehydration making them crucial for long-distance running.

  • Multivitamins: Multivitamins can help fill nutritional gaps in your diet if there are any areas that are lacking attention.

  • Calcium: Calcium is an important mineral which supports muscle function and reduces the risk of stress fractures.

  • Turmeric: Turmeric supplements are useful in improving joint health and in high-impact activities such as running, where the joints undergo a lot of stress, making this supplement very important in training.  




What is Carb-loading?

When you begin tapering for your race it is important to adapt your diet accordingly by incorporating a higher proportion of carbohydrates into your diet. Eating carb rich meals twice a day will allow your body to build up plentiful stores of energy to expend on race day. 



Race Day Nutrition

The morning of race day: it is important to eat a meal that is relatively light and that you are familiar with. We recommend that 2-3 hours before the race you eat a meal that includes complex carbohydrates to give you a consistent release of energy throughout your run.


Before the run: Have a light high-carb snack, such as an energy gel, energy chews or a banana.


Fuelling during the run: Whilst running it is important to maintain energy levels. By having a form of carbohydrate, such as an energy gel, every 5km during the run it will help you to keep energy stores high. Keeping properly hydrated is also vital, make sure you are regularly drinking water with electrolytes to keep fatigue at bay.



Post - race: After the race make sure to continue hydrating yourself and replenish your lost salts with electrolytes. Also ensure you eat a protein rich meal to help your muscles recover and continue snacking throughout the day if you still feel hungry, remember to listen to your body.



Remember that proper nutrition is important throughout all your training and not just on race day. With all the hard work and dedication being put into the months of gruelling training the marathon is your victory lap - enjoy it!


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