Long Distance Cycling Nutrition: What to Eat and Drink

For most long rides, fuel on a simple plan: eat a carbohydrate-rich meal a few hours before, take in roughly 60 to 90 grams of carbohydrate per hour once the ride passes about 2.5 hours, drink to a plan built around your own sweat rate, and eat a meal with both protein and carbohydrate afterward. Everything else in this guide is detail on how to make that plan work on a real ride, with real food, in real weather.

TL;DR

• Start eating early. Don’t wait for hunger, because by then the deficit is already costing you.
• On rides over 2.5 hours, aim for 60 to 90 g of carbohydrate per hour. Lower for shorter rides, higher only if your gut is trained for it.
• Limit fluid loss to under 2% of body weight, add sodium on long or hot rides, and learn your own sweat rate in training.
• Practice your race or trip-day fueling on training rides. Your gut adapts, and nothing new should appear on the big day.
• Mix real food and sports products, and plan where you can refill, including café stops.

Table of Contents

• Why fueling decides how a long ride feels
• Before the ride
• During the ride
• Train your gut
• Hydration and electrolytes
• After the ride
• A fueling plan for a multi-day riding trip
• Perspective: fueling is part of route planning
• Plan the ride and the fuel together
• Common mistakes to avoid
• FAQ
• Sources

Why fueling decides how a long ride feels

Your muscles burn a mix of fat and carbohydrate. Fat is plentiful, but carbohydrate stored as glycogen is limited, and when it runs low, pace collapses. Cyclists call it the bonk: sudden weakness, shaky legs, a foggy head, and a ride that turns into a survival exercise.

The fix is not complicated, but it is specific. Current guidance from the UCI Sports Nutrition Project sets carbohydrate targets by duration: 30 to 60 g per hour for rides of 1 to 2.5 hours, and 90 g per hour or more for events beyond 2.5 hours. Elite riders sometimes take in 120 g per hour in demanding conditions. That is a racing number, not a starting point for a weekend rider on a holiday, and we will come back to how to build toward it.

The same logic applies whether you ride a flat century or a mountain day with 2,000 meters of climbing. Climbing raises effort, effort raises fuel burn, and the longer you ride, the more the plan matters.

Before the ride

The days before

If you have a big day coming, such as a century, a gran fondo or a multi-hour mountain loop, treat the two or three days before as part of the ride. One piece of published advice for endurance riders is to aim for 8 to 10 g of carbohydrate per kilogram of body weight per day for a few days beforehand. For a 70 kg rider, that is 560 to 700 g a day, which is a lot of rice, pasta, bread, potatoes and fruit. Most people find it easier than expected once they stop worrying about fat and fiber and simply eat starchy food at every meal.

This kind of loading makes sense for a very long day. For an ordinary two-hour spin, eating normally is enough.

The meal 2 to 4 hours out

The same source suggests a carbohydrate-rich meal 2 to 4 hours before you start, then a higher-GI snack (something that releases sugar quickly, such as a banana, a rice cake or a slice of toast with jam) 30 to 90 minutes before rolling out.

Keep the meal familiar and low in fat and fiber so it sits comfortably on a bike. Good examples:

• Oatmeal with banana and honey
• White rice with an egg
• Toast or a bagel with jam and a little peanut butter
• Yogurt with granola and fruit

Add coffee if it is part of your normal morning. Don’t introduce it for the first time on ride day.

During the ride

How much to eat

A useful way to think about it is by ride length:

The 30 to 60 g and 90 g figures come from the UCI position statement. The UCI’s companion paper on road racing notes that modern racing has pushed professional intakes toward 90 to 120 g per hour, partly because hard segments now come earlier in events. For the same reason, the 60 to 90 g range quoted for recreational long rides is a sensible ceiling for most people, not a floor.

To make this concrete, 60 g of carbohydrate is roughly one large banana (about 27 g) plus one standard energy gel (often 20 to 25 g), plus a bottle of sports drink at around 30 g. Check the labels on your own products, because they vary a lot.

Why two sugars beat one

Your gut absorbs glucose through one transport pathway and fructose through another. Once you go past roughly 60 g per hour, a single sugar type hits its limit. Products and homemade mixes that combine glucose and fructose use multiple intestinal uptake systems, which raises how much carbohydrate you can absorb and use, and better delivery is associated with less stomach discomfort. In practice that means a mix of sports drink, gels or chews that list both glucose (or maltodextrin) and fructose, plus fruit and honey-based food.

Real food and sports products

You don’t have to live on gels. For rides of three hours or more, Bicycling suggests eating more solid food early in the ride, then moving to easily digestible snacks or sports products such as blocks, chews, gels or carbohydrate-electrolyte drinks later, when effort is higher and chewing is less appealing. Carb-rich real foods such as rice cakes or peanut butter and jelly sandwiches add welcome variety.

A workable pocket plan for a five-hour ride:

1. Hour one: a sandwich or rice cake, plus drink mix in the bottle.
2. Hours two and three: a banana, a bar, a handful of dried fruit, a gel as the road tilts up.
3. Hours four and five: chews, gels and sports drink, because they go down easily when you are tired.

Savory food helps too. After several hours of sweet, salty pretzels, a potato with salt, or a ham sandwich can feel like a gift. Save high-fat and high-protein food for the café stop, not the climb.

Protein and fat while riding

Protein during exercise is generally not recommended because it can slow gastric emptying and delay the arrival of carbohydrate and fluid. A little in a sandwich is fine. A protein bar as your only fuel is not a good idea. In ultra-endurance events lasting at least six hours, researchers note that fat-rich foods may be considered alongside carbohydrate, electrolytes and fluid, since energy deficits can reach about 7,000 kcal per day. That is an edge case for most of us.

Build the habit of eating on a clock

Set a reminder on your bike computer every 20 to 30 minutes. Small, regular feeding is easier on the stomach than big, rare meals, and it keeps you ahead of the deficit. If you wait until you feel hungry or weak, you are already behind, and catching up on the bike rarely works.

Train your gut

The digestive system adapts. The UCI position statement describes gut training: consuming progressively larger amounts of carbohydrate during training sessions to improve absorption, tolerance and oxidation of high hourly rates.

A simple way to do that:

1. Find your current comfortable intake on your longer weekly ride.
2. Add 10 to 15 g per hour the following week.
3. Keep the increase if your stomach stays calm. Step back if not.
4. Repeat until you reach your target, then use the exact products you trained with on the big day.

If you plan a riding holiday, do this at home first. A trip abroad is the worst place to find out that a certain gel upsets your stomach.

Hydration and electrolytes

How much to drink

There is no universal number of bottles per hour. The UCI position statement recommends individualized hydration plans that aim to keep fluid loss under 2% of body weight, often by practicing drinking in training to learn your sweat rate. Fluid deficits beyond that threshold can impair performance, raise heart rate and strain temperature regulation.

A basic sweat test: weigh yourself nude before and after a one-hour ride at typical effort, add what you drank (1 liter weighs about 1 kg), and the difference is your hourly loss. Repeat in cool and warm weather, because the answer will change.

Don’t overshoot. For ultra-endurance races of at least six hours, researchers have suggested drinking to thirst at roughly 300 to 600 mL per hour to reduce the risk of exercise-associated hyponatremia (dangerously low blood sodium) and keep plasma sodium in range. Some well-trained athletes in long events have also lost over 3% of body mass when drinking by thirst without a performance penalty. Your plan should respect thirst and your measured sweat rate, not a rigid schedule.

Sodium

Sodium helps your body absorb and hold fluid and lowers hyponatremia risk on long or hot rides. A review reports that the ISSN recommends 300 to 600 mg of sodium per hour when temperatures exceed 25°C (77°F) or humidity exceeds 60%. Many sports drinks contain some sodium, so check labels before adding tablets. If you finish rides with white salt marks on your kit, you probably lose more than average, and a rider with that pattern should talk to a sports dietitian rather than guess.

If you have high blood pressure, kidney disease or another medical condition that limits sodium, ask your physician before raising your intake.

Do short rides need all this?

No. The American College of Sports Medicine notes that most people who train less than 60 to 90 minutes a day in normal weather are unlikely to become dehydrated or depleted of electrolytes. The plan above is for long days.

Mountain days: heat, climbs and descents

On alpine rides, the variables stack up. Long climbs mean sustained effort and high sweat output, but cooler air at altitude and wind on descents can hide how much you are losing. Sipping on every climb, topping up bottles at every fountain or café, and finishing a bottle before the descent usually works better than waiting for a flat section. Because heat, effort and ride length all shift your sweat rate, reuse the weigh-in test on a hilly ride in the weather you expect.

Terrain also affects eating. Gels and drink are easy to take on a climb, but a technical descent is a poor time to fumble with a wrapper. Eat before the top, then descend with hands free.

After the ride

The first hour or two after a long ride is when you start recovery. Eat a meal high in both protein and carbohydrate, a point the Cycling Weekly guide also makes. Rice with chicken or fish, pasta with a meat sauce, eggs and potatoes, or a large yogurt bowl with fruit and granola all work. Drink fluid and include salty food if the day was hot. On multi-day trips, this meal matters even more, because tomorrow’s ride starts with tonight’s dinner.

A fueling plan for a multi-day riding trip

The nutrition problem changes when you ride several days in a row. You can’t rely on one big meal and a full pocket on day one. You need to refuel in places you don’t know.

Try this:

• Pack a base stash. Bring a few gels, chews or bars you know your stomach accepts, as backup for places where shops are closed.
• Use stops as part of the plan. A café stop is a chance to eat real food, refill bottles and reset. Plan where they fall in the ride before you leave.
• Eat breakfast and dinner as if they count. Because they do.
• Check your route notes for water and food. Know where the long gaps are, especially on climbs.

This is one reason we build our own rides around a single base and flag coffee stops and amenities in the ride notes. If you are putting together a trip on your own, our guide to self-guided cycling holidays covers the wider planning, and our notes on loading and riding GPX routes help you mark food and water points on your device before you set off.

Perspective: fueling is part of route planning

We are a small team built around a local rider who has ridden every loop in our pack multiple times, and the lesson we keep returning to is that nutrition fails less often because of the wrong gel and more often because of the wrong map. A rider who knows the next café is 40 minutes away can eat the right thing at the right time. A rider who doesn’t tends to either eat everything in the first hour or arrive at the foot of a 12 km climb with empty pockets.

So we do two things when we plan a route. We note where the climbs start and how long they last, which is what tells you when to eat before them. And we pick coffee stops by hand, because the best stop is one where you can have a real meal, refill bottles and sit for ten minutes before the next effort. A shared base in Kranj also helps: you don’t carry a suitcase’s worth of food from place to place, and you can keep the same products and routine all week.

Our advice is plain. Decide your hourly carbohydrate target before you leave, train your stomach on it, and plan the route around where you will eat. Then enjoy the coffee.

— Coffeeride

Plan the ride and the fuel together

If you want to put this into practice in the Slovenian Alps, our Slovenian Alps Pack gives you seven locally curated road loops from a single base in Kranj, with GPX files, gradient profiles, recommended coffee stops, practical ride notes and a guide to cafés, bike shops and lodging in the area. It is a one-time purchase at $19.99.

Want to try a route first? Download the free Slovenian Alps route, or read how the pack works. If you would rather have a trip shaped around your group, see our custom trips service. For background on the region, our guide to cycling in Slovenia covers seasons and trip planning.

Common mistakes to avoid

• Starting to eat too late. Begin within the first 30 to 45 minutes.
• Trying new products on a big day. Test everything in training.
• Relying on one kind of sugar. Above about 60 g per hour, a glucose and fructose mix helps.
• Drinking by a rigid schedule. Use your sweat rate and thirst, and remember that over-drinking is a real risk on long rides.
• Skipping salt in heat. Check your drink’s sodium content, and see the sodium range above for hot, humid days.
• Undereating the night before. A big day starts at dinner the evening before.
• Ignoring the food you can buy. On a trip, plan stops so you can eat real meals, not just gels.

FAQ

How many carbs should I eat per hour on a long ride?

For rides longer than 2.5 hours, aim for about 60 to 90 g of carbohydrate per hour. For rides of 1 to 2.5 hours, 30 to 60 g per hour is typical. Going above 90 g needs a trained gut and a glucose and fructose mix.

What should I eat on a long bike ride?

Use a mix. Start with solid food such as sandwiches, rice cakes, bananas or bars, then move to chews, gels and carbohydrate drinks as the ride goes on and effort rises. Choose what you have already tested in training, and keep protein and fat low while you are riding.

How much should I drink on a long ride?

The goal is to keep fluid loss under 2% of your body weight, and the best way to learn your own number is to weigh yourself before and after training rides. On long or hot rides, include sodium in your drink. Don’t force fluids beyond your sweat rate, because over-drinking can cause hyponatremia.

Do I need electrolytes?

On rides under 60 to 90 minutes in mild weather, usually not. On long rides, in heat or humidity, sodium helps you absorb fluid and lowers hyponatremia risk. If you have a medical condition affecting blood pressure or kidneys, check with your doctor first.

How do I avoid stomach problems while eating on the bike?

Increase your carbohydrate intake gradually in training so your gut adapts, and use products that combine glucose and fructose. Eat small amounts often instead of large amounts rarely, and avoid fatty or high-fiber food during the ride. If problems continue, see a sports dietitian or your physician.

Sources

• UCI Sports Nutrition Project: Position Statement on Nutrition for Cycling
• UCI Sports Nutrition Project: Race Nutrition for Road Cycling
• Cycling Weekly: nutrition for long bike rides
• Bicycling: how to fuel on cycling rides of every length
• Nutrition for Successful Cycling Performance
• Nutrition in Ultra-Endurance: State of the Art
• Role of nutrition in performance enhancement
• ACSM: 9 Facts About Hydration and Electrolytes
• Revista Brasileira de Nutrição Esportiva: sodium recommendations review

Recommended

• Road Cycling Safety: How to Ride Smart on Any Road
• Self-Guided Cycling Holidays: How to Plan Your Own
• GPX Cycling Routes: How to Choose, Load and Ride Them