Ethan Brooks
Carbohydrate loading, or carb loading, is a common strategy used by runners to optimise their glycogen stores before a marathon. The practice involves increasing carbohydrate intake in the days leading up to the race, with a focus on simple carbohydrates such as white rice, bread, pasta, and potatoes. The recommended amount of carbohydrates to consume varies, with some runners aiming for a certain number of grams per kilogram of body weight, while others adjust their carbohydrate intake as a percentage of their total calorie intake. It is recommended to start carb loading several days before the race and to avoid trying new foods or routines on the day of the marathon.
| Characteristics | Values |
|---|---|
| Carbohydrate loading time | Carb loading should be done 48 hours before the marathon. |
| Carbohydrate loading method | Focus on low-fibre, low-fat carbohydrates such as white rice, bread, pasta, or potatoes. |
| Carbohydrate loading portion | 1-4 grams of carbohydrates per kilogram of body weight. |
| Breakfast timing | Eat breakfast 3-4 hours before the race. |
| Breakfast composition | Carbohydrate-rich breakfast with moderate protein and fat. |
| Examples | Oatmeal cooked in milk, a banana, peanut butter, raisins, honey, cinnamon, and a dash of salt. |
| Other tips | Avoid high-fibre foods the day before if you have a sensitive stomach. |
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What You'll Learn
Carb loading strategies
Carbohydrate loading, or carb loading, is a popular strategy used by runners to optimise their glycogen stores before a marathon. While there are many methods for carb loading, the goal is to ensure you have enough fuel to get you through the race. Here are some strategies to consider:
Start Early
Don't wait until the week before the marathon to start thinking about carb loading. Use your training period to test different foods and understand how they affect your body. This will help you develop a plan that works for you. Start increasing your carbohydrate intake several days before the race. This can be done by increasing your portions of carbohydrate-rich foods and decreasing your consumption of protein, healthy fats, and fibre.
Focus on Simple Carbohydrates
In the days leading up to the race, focus on simple carbohydrates such as white rice, bread, pasta, and potatoes. These foods are easily digestible and will help you stay satiated.
Spread Out Your Carb Intake
Instead of trying to consume a large amount of carbohydrates in one meal, spread out your carb load over a few days. This will help you avoid feeling uncomfortable and bloated. For example, you can aim for 500g of carbohydrates three days before the race, and then increase to 700g in the two days before.
Eat Early and Light the Night Before
Eat dinner early enough the night before the race to give your body time to digest and store energy. A lighter, early dinner the night before can help you avoid feeling bloated, and ensure you have the energy you need.
Carbohydrate-Rich Breakfast
Eat a familiar, carbohydrate-rich breakfast 3-4 hours before the race. This will help replenish your liver glycogen. Stick to easy-to-digest carbohydrates and include a bit of protein.
Carbohydrate Drinks and Gels
In addition to solid foods, you can use carbohydrate drinks and gels to help you stay fuelled. These can be sipped on throughout the day before and during the race.
Remember, it's important to find what works best for your body, and to practice your nutrition plan during training. Carb loading is just one part of marathon preparation, and it's crucial to also focus on hydration and overall nutrition.
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How many grams of carbs
Carbohydrate loading, or carb loading, is a common practice among runners in the days leading up to a marathon. It involves increasing your carbohydrate intake to optimise your glycogen stores, which can help delay fatigue during the race. The amount of carbs you should consume depends on various factors, including your body weight and the duration of the race.
For example, one runner shared that they consumed 8 grams of carbs per kg of body weight over two days before their last marathon. This amounted to around 700 grams of carbs per day, including pasta, juice, bagels, and toast. They also supplemented their diet with carb drinks, which provided an additional 160 grams of carbs per day. This approach helped them maintain their energy levels during the race without feeling too heavy or sluggish.
Another runner shared that they followed a similar carb-loading regimen, consuming 500 grams of carbs three days before the race and increasing to 700 grams on the two days leading up to the event. It is important to note that the amount of carbs one should consume may vary depending on individual factors, and it is always advisable to consult a dietitian or nutritionist to determine the appropriate amount for your specific needs.
While carb loading can be beneficial, it is essential to maintain a balanced diet. This means ensuring your diet includes not only carbohydrates but also proteins, healthy fats, and fibre. Additionally, it is recommended to start carb loading several days before the race, gradually increasing your carbohydrate intake over a few days rather than attempting to overload the night before. This will help you avoid feeling uncomfortable and bloated on race day.
In summary, the number of grams of carbs you should consume for breakfast before a marathon depends on your individual needs and body weight. It is generally recommended to increase your carbohydrate intake in the days leading up to the race, focusing on simple carbs such as white rice, bread, pasta, and potatoes. However, it is important to test different food options during training to determine what works best for you and to ensure that your diet remains balanced and well-rounded.
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What foods to eat
When preparing for a marathon, it is important to focus on carbohydrates in the days leading up to the race to optimise your glycogen stores. This is known as carb loading. The numbers usually come out to be 4.5 to 5.5 grams of carbs per pound of body weight. However, eating more carbs does not mean overeating. It simply means making sure that more of your daily calories are coming from carbohydrates instead of fats.
It is recommended to start carb loading several days before your race by increasing your normal carbohydrate intake from 55 to 65 percent to 70 percent. You can do this by increasing your portions of carbohydrate-rich foods and decreasing your protein and healthy fat intake. Good sources of carbohydrates include whole grains, fruits, vegetables, potatoes, sweet potatoes, and dairy foods. However, it is important to watch your fiber intake, especially if you suffer from gastrointestinal problems.
The night before the marathon, continue to focus on carbs to increase your glycogen stores, but avoid overeating as it may leave you feeling uncomfortable and bloated. Stick to simple carbohydrates such as white rice, bread, pasta, or potatoes, with a small amount of lean protein such as chicken, white fish, or tofu. Eat dinner early enough to give your body time to digest and store energy.
On the morning of the marathon, it is recommended to eat breakfast 3 to 4 hours before the race to allow your body time to digest. Stick to easy-to-digest carbohydrates and a small amount of protein that you would normally eat before a long run. Examples include a bagel with peanut butter, toast, or a banana.
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Timing your breakfast
It is advised to avoid high-fibre, high-fat, or high-protein foods in the morning, as they can slow down digestion and may cause discomfort during the run. Instead, opt for easy-to-digest, carbohydrate-rich foods that will provide your body with the energy it needs. Some good breakfast options include bagels, toast, juice, and peanut butter.
The night before the marathon, continue to focus on carbohydrates to increase your glycogen stores. However, be careful not to overload, as eating too much may cause discomfort and bloating. Spread out your carb intake over a few days leading up to the race. Simple carbs, such as white rice, bread, pasta, or potatoes, are good options, along with some lean protein like chicken, white fish, or tofu.
It is recommended to have your last large meal at lunchtime the day before and a lighter meal in the evening. This gives your body enough time to digest and store energy. Additionally, if you suffer from gastrointestinal issues, consider reducing your fibre intake a day or two before the marathon to minimise any potential issues on race day.
Remember, the specific timing and amount of carbohydrates may vary depending on individual preferences and tolerances. It is always a good idea to test different food options during your training to determine what works best for you.
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Weight gain expectations
The amount of carbs you consume will depend on your body weight and the duration of your runs. For example, one runner on Reddit shared that they consumed 8 grams of carbs per kg of body weight over two days before their marathon. They started at 400 grams and gradually increased, finding that this helped them avoid feeling sluggish or overly full. Another runner mentioned that they spread their carb loading over three days, aiming for 550 grams per day, which was more manageable for them than a higher amount over two days.
It's important to remember that carb loading should be done in addition to rest and tapering. This means that while you increase your carbohydrate intake, you should also be reducing your overall mileage in the week before your marathon. This balance will help optimize your glycogen stores and ensure you don't feel uncomfortable or bloated on race day.
In terms of specific meals, it's recommended to focus on simple carbs such as white rice, bread, pasta, or potatoes, along with some lean protein like chicken, white fish, or tofu. The day before your race, eat throughout the day, focusing on carbohydrate-rich foods. You can also include fruits and vegetables as good carbohydrate options, but be mindful of the fiber content.
While carb loading is important, it's just one part of marathon nutrition. It's crucial to test different food options during your training to see what works best for you. Understand what will be provided at aid stations and increase your carbohydrate intake moderately in the days leading up to the race. Eat a familiar breakfast 3-4 hours before the start, and bring a gel or carbohydrate drink to sip in the hour beforehand.
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Frequently asked questions
It is recommended that you eat a meal that contains mostly carbohydrates with moderate protein and fat. The exact amount depends on your body weight. For every kilogram of body weight, you should eat 1-4 grams of carbohydrates.
You should eat breakfast 3-4 hours before the marathon so that your body has time to digest the food.
Good sources of carbohydrates for breakfast include white rice, bread, pasta, potatoes, bananas, oatmeal, and sports drinks/juice.
