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    Food for Marathon Runners

    2 minute(s) read
    Information by
    Bangkok Hospital Headquarter
    Updated on: 10 Dec 2025
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    Food for Marathon Runners
    AI Translate
    Translated by AI
    Bangkok Hospital Headquarter
    Updated on: 10 Dec 2025

    Most marathon runners tend to think that since they run regularly, they can eat anything because the calories will just burn off. When it comes to racing, they think of loading up on something extra, only to find themselves not performing well, getting hurt, and ultimately suffering from injuries after running and not being able to participate in future races. The truth that needs to be understood is that the food one consumes greatly affects the body and running performance, as well as the muscles and hormones of the runner.

     

    Food for Marathon Runners

    1​

     

    Before Running, One Should Eat

    • Pasta 
      High in carbohydrates, an excellent source of energy for muscles
    • Bananas
      Rich in Potassium, helps in regulating heart muscle contractions, and Magnesium, which helps in reducing cramps
    • Watermelon 
      Contains the amino acid Citrulline, which helps improve muscle performance and reduces soreness after running
    • Potatoes 
      Rich in Manganese, helps increase sugar metabolism in the body and strengthens bones
    • Freshly Squeezed Juice 
      A source of Vitamin C, stimulates the immune system, prevents colds, and provides freshness and vitality

     

    After Running, One Should Eat

    • Coconut Water 
      Replaces the minerals lost through sweat, has lower sugar content than standard sports drinks, suitable for runners who want to control their weight
    • Avocado 
      A source of good fatty acids (HDL), reduces the risk of heart disease, high in Vitamin E, which helps reduce inflammation in the joints
    • Almonds 
      Rich in Copper, supports the thyroid gland that controls metabolism and boosts energy in the body
    • Berries
      High in Flavonoids, helps Vitamin C work more efficiently and reduces brain fatigue
    • Salmon 
      A source of Omega 3 Fish Oil, helps reduce muscle inflammation after exercise, high in Vitamin D, prevents osteoporosis and reduces stress

     

    In case of running a half-marathon and a full marathon, it’s advised to eat approximately 2 hours before running to prevent stomach cramps, as one might need to consume a significant amount to suffice for each distance. However, for short distances not exceeding 10 kilometers, there’s no need to eat much; a banana or a box of milk about an hour before running would suffice.

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