Check out the London Marathon's training and meal plans. Want to run the 2026 TCS London Marathon? Head to the TCS London Marathon website to find out everything you need to know about the ballot.

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Overall dietary guidelines:

Contrary to popular belief, the week before the marathon isn't all about piling on the pasta. In fact, to maximise carbohydrate (fuel) stores before the race, runners only need to start 'fuelling up' or 'carb-loading' two or three days before the race (three days if you prefer slower increase in your daily intake). Read more in our guide to carb-loading.

Runners who have coeliac disease, are intolerant to gluten or simply following a gluten-free diet need to plan their meals carefully around the appropriate carbohydrate options to prepare for the race. We have adapted our week-long marathon meal plan to provide options for the week leading up to the event, as well as examples that can be used as part of your wider training or day-to-day routine.

Earlier in the week, it may be useful to start including snacks to train the gut in preparation for increased carbohydrate intake in the days leading up to the marathon.

As a general rule, what you eat should be different depending on the training demands for that day (or when you are preparing for the race itself) to promote sufficient fuelling and recovery. Discover what to eat on different training days with our training meal plans for runners.

We’ve included examples of the race training programme from the TCS London Marathon to plan your nutrition for this day.

NutritionBreakfastLunchDinnerMorning snackAfternoon snackDessert/evening snack
MealCheese omelette with gluten-free breadSpicy tuna & cottage cheese jacket potatoHarissa salmon pilafBlueberry smoothieGluten-free banana breadDark chocolate orange creams
Protein (g)21g64g28g3g7g5g
Carbs (g)23g33g46g21g57g15g
Total calories499439585120405140

Scroll down for the recipes

Saturday training:

Gentle stretching
* Beginner's guidelines as recommended by the TCS London Marathon.

Saturday nutrition:

It's the day before the big race. While carbohydrates are still the priority to fuel for the race ahead, it's important to stick to the foods you know – now is not the time to start experimenting with extra spice or fatty dishes, which may cause a stomach upset.

Often the biggest mistake is trying to eat too much the day before and feeling uncomfortable on the morning of the race. Stick to your normal routine here (only have a dessert or an evening snack if you usually have one), so you're up and ready to eat breakfast before the race.

Breakfast
Cheese omelette with gluten-free bread

Cheese omelette on a plate with a green salad

This healthy, protein-rich omelette can be on the table in just 10 minutes, served with juicy tomatoes and a slice of toasted gluten-free bread.

Morning snack
Blueberry smoothie

Blueberry smoothie in tall glass with straw

Make a quick blueberry smoothie with yogurt, banana and apple juice for your morning snack. You'll not only get a nice hit of antioxidants from the berries, but the banana and juice contribute to your energy levels.

Lunch
Spicy tuna & cottage cheese jacket potato

Spicy tuna cottage cheese jacket potato

Tuna and cottage cheese makes for a delicious and protein-packed combo, add in a jacket potato and you've got a filling lunch that's guaranteed to hit the spot.

Afternoon snack
Gluten-free banana bread

Gluten free banana bread in baking paper on a wire rack

Made with almonds and gluten-free flour, this moist banana loaf cake is just what you need with your afternoon tea.

Dinner
Harissa salmon pilaf

Harissa salmon pilaf with pomegranate on plate

Dessert/evening snack (optional)

Dark chocolate orange creams

Dark chocolate and orange creams

Combine high-quality dark chocolate and orange to make this healthy sweet snack.

Don't need to eat a gluten-free diet? Try our basic, vegetarian and vegan marathon meal plans.

Don't forget to check out the week-long gluten-free marathon meal plan.

Paula Radcliffe's top diet tip if you're training for a marathon

"Consume plenty of protein as well as carbs," says Paula. "You're going to need to tweak your diet and pay more attention to carbohydrate and protein because you're building muscle and breaking it down. People always think about the carbs and don't think so much about the protein side of it." See all of Paula's tips for success.

How to stay hydrated on a run

Want to know why your body needs to be hydrated during a long run or marathon, how often you should drink, which drinks to enjoy and if you should be taking electrolytes? Read our expert guide on staying hydrated on your run. Your hydration strategy should replace any water and electrolytes that have been lost through sweat. Make sure you start your race or long run fully hydrated – drinking approximately 500ml of fluid two hours before allows any excess to be passed as urine before you start.

How does Mo Farah stay hydrated on a run?

"Water obviously is the most natural thing you can have, but it leaves your body too quickly, and there are isotonic drinks that are better for you."

Like fluid, electrolytes are lost in sweat and may need to be replaced. You can top up your electrolyte levels with sports drinks and gels, which are an easy way to absorb and retain fluid during heavier sweat losses. Check out our review of the best electrolytes.

Deputy health editor's tips for using this plan

Want more running info? Now try...

Find more expert advice and answers to your training questions in our marathon hub.

What to eat before a run
What to eat during a run
What to eat after a run
How to stay hydrated on a run


James Collins is recognised as a leading Performance Nutritionist through his work with Olympic and professional sport. Over the last decade he has worked with Arsenal FC, the England and France national football teams and Team GB. He has a private practice in Harley Street where he sees business executives, performing artists and clients from all walks of life. He is the author of the new book The Energy Plan, which focuses on the key principles of fuelling for fitness.

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All health content on goodfood.com is provided for general information only, and should not be treated as a substitute for the medical advice of your own doctor or any other healthcare professional. If you have any concerns about your general health, you should contact your local healthcare provider. See our website terms and conditions for more information.

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