Here’s a test, nip out on your bike before you read this but don’t do your usual prep. Make sure you’ve not eaten for at least 3 hrs or taken any energy drinks or gel. Just go for about 20 mins and take no water either.

How did that feel? I’m actually hoping you didn’t do that as it’d be pretty dumb – but you knew that (unless of course you’re doing a fasted ride). Whatever you’re pre-ride routine currently is, one thing is for certain, you know that you need to eat something before you go. But why? Energy, in a word. We recently wrote this article on how many calories do we burn when cycling which shows that an average, regular riding, cyclist will burn around 500-600 calories per hour. On that basis, an average days ride could burn anything from 2,000 to 3,000 calories. Wow. Put it another way, that the equivalent of over a days food intake.

What you eat makes a big difference to your performance. Correct fuel intake will help you to make it up those steep climbs, pedal faster and recover at a faster rate too. It’ll make those post ride moments more comfortable and less like, omg, why did I just do that. Cycling is meant to be fun, so enjoying the ride is essential. So, start the day with a high energy breakfast, add power snacks on the bike and enjoy post ride energy meals to ensure you get your sports nutrition needs.

Energy Intake

Before you start your ride, it’s important to have a good breakfast. Being hungry leads to an increase in stress hormones, which when released into the muscles, can increase muscle breakdown. This is a classic cause of feeling as though you have no energy, which is true, as you haven’t taken on-board enough fuel.

Now, there is a trend to get on your bike without eating first (fasting), the belief being that this will help with fat & weight loss. I’m not a fan of this technique. Evidence shows that well-fed cyclists ride harder and train for longer, which leads to greater loss of calories. Thus, losing more weight and fat anyway. This latter technique puts less stress on the body which is much healthier than not eating before a ride.

Energy Breakfasts


Ideally, breakfast should be eaten at least two hours prior to cycling, but this isn’t always possible and different people digest at different rates.

Aim for a carbohydrate based breakfast which also contains some protein and is low in fat. A breakfast of around 150 grams is good, although shorter rides only require half this amount. Some breakfast suggestions include;

  • Porridge made with semi-skimmed milk
  • Scrambled or poached egg on wholegrain toast
  • Wholegrain cereal and milk

The right breakfast will help to ensure you are fully hydrated for your ride. Well hydrated bodies can be identified by the colour of urine. It should be a very pale yellow, so if it isn’t you will need to drink some water, about a litre, before you ride.

If you are short of time or plan to just go on a short ride, try the following instead;

  • 1 piece of wholegrain toast
  • ½ a wholegrain bagel
  • Small energy bar designed for pre-exercise
  • 1 Banana
  • Energy drink

Nutrition on the Bike

Carbohydrates help to fuel the body during a bike ride. These carbohydrates provide fuel to the active muscles and help fuel the nervous system. The brain uses glucose as its energy source, so a low intake may lead to general weakness, dizziness and low blood sugar. Reduced blood sugar during exercise decreases performance and can lead to mental and physical tiredness. So, good energy levels, good glucose intake and maintaining carbohydrate levels will ensure you have sufficient fuel to power your performance and help you feel better during cycling.

Your three nutritional goals during training should be;

  • To remain hydrated
  • To replace used energy
  • To replace the salts you lose in sweat

You can achieve the right energy intake goals by using sports energy drinks, foods and gels. These are perhaps best used during cycling, to maintain high energy levels through a longer ride. You can hardly stop for a big meal during a ride but it’s still important to remember how many calories you’ll burn during the ride. If you watched the recent Tour de France you’ll have seen all the cyclists doing just this, the snack thing not the stopping for a big meal thing.

Energy Drinks

The following table lists energy drinks from the leading suppliers, including Science in Sport / SIS, High5, Torq and PowerBar. The table shows nutritional information for each drink, and is ranked from best to least best (of the ones listed).

I personally use SIS GO Energy Drink as it has the highest ratio of carbohydrates at 94% (94g in a 100g portion). Whilst the High5 Energy Source Plus matches the carbs level, it has significantly more sugar (38g vs 7g).

The Torq Energy Drink is a close 3rd and the pink grapefruit is a particular favourite so you can’t go wrong with any of those. Given that you’ll likely be drinking a couple of litres of these drinks per ride, it’s important that you actually like the taste so choose wisely.

Energy Drinks
per 100g Energy Carbs Sugar Protein Salt
1. SIS GO Energy Drink 377 kcal 94g 7g 0g 0g
2. High5 Energy Source Plus 374 kcal 94g 38g 0.1g 1.3g
3. Torq Energy Drink 365 kcal 91g 23g 0g
4. High5 Xtreme 361 kcal 90g 47g 0.1g 1.3g
5. Wiggle Nutrition Energy Drink 363 kcal 90g 70g 0g 0.75g
6. PowerBar Isoactive 359 kcal 88g 61g 0.5g 3.15g
7. PowerBar Iso Drink 360 kcal 88g 66g 0.8g 1.75g
8. High5 4:1 Drink 380 kcal 75g 44g 19g 1.3g

Energy Gels

Our body stores enough energy for around 90 mins of exercise so if you are planning a ride of less than two hours, it’s not necessary to consume additional energy, whether this be in the form of energy drinks, energy gels or standard foods. However, endurance events such as Sportives or rides of more than 3-4 hours, additional energy may be required.

Energy Gels are quick bursts of carbohydrates to ensure you can keep cycling, without hitting the wall or worse, bonking (a sudden lack of energy whilst cycling). Nutritionists recommend an energy intake of 30g to 65g, depending on your fitness and current energy levels. Most of the energy gels listed in this table equate to taking 3 gels per hour to help you sustain your output but don’t take gels on their own, instead balance your consumption with other forms of energy.

I’ve tried most of the gels listed and whilst I have my own favourites, you’ll need to try them out for yourself to find the one that suits you best. This will be a combination of texture, flavour and of course the effect. I’ve listed the gels from high to low energy levels, this being either kCal or carbs per gel packet.

Just one final tip. Before you make a decision on which gel to buy, consider that the highest carbohydrate content in this list (Torq Energy Gels) is a massive +31% higher than the lowest (SIS Isotonic Energy Gels), which is considerable.

Energy Gels
per sachet Energy Carbs Sugar
1. Torq Energy Gels 114 kcal 28.8g 9.6g
2. PowerBar PowerGels 107 kcal 26.7g 9.8g
3. GU Energy Gels (blackberry) 100 kcal 25.0g 5.0g
4. Clif Bar Shot Gels (citrus, razz) 96 kcal 24.0g 12.0g
5. High5 Energy Gels 91 kcal 23.0g 2.9g
6. Wiggle Nutrition Energy Gels 90 kcal 22.6g 6.6g
7. SIS Isotonic Gels 87 kcal 22.0g 0.7g

Post Bike Ride Energy Foods

At the end of your bike ride, it is important to refuel your body to ensure it re-stocks its energy levels. This also helps to ensure your muscles recover and stop the following day muscle fatigue.

Reduced carbohydrate levels can lead to an increased rate of getting infections and minor illness like colds and flu. So, post ride meals are as important as pre-ride intake. Ideally it should contain a mix of carbohydrate and protein at an approx ratio of 3:1 as this help to regain the right fuel balance.

So what foods should you choose. Certainly omega 3 healthy fats found in fish, walnuts, flax and pumpkin seeds are great for keeping inflammation at bay, as are fresh fruit and vegetables. Leafy green vegetables and brightly coloured fruits will provide plenty of antioxidants and flavonols, known for their anti-inflammatory properties. Apples and red onions can be especially helpful as their active ingredient, quercetin, is also known to reduce inflammation.

Post Ride Re-hydration

Once you’ve finished your bike ride is not the time to stop drinking. You should aim to drink around 3 pints of water, or two litres. Once again, check that your urine remains a pale yellow and if not drink a little more.

So is all this worth it. Yes of course it is. The more you follow these simple guidelines, the more energy you’ll have and in turn the more you will enjoy your cycling. Trust me, I’m not a Doctor.

© – this is not medical advice. If you need medical advice please consult someone who’s medically trained and qualified.