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Cycling Nutrition for triathletes

Nutrition for cycling by Kevin Beasley

Like most beginner cyclist, I made many mistakes at the start due to lack of knowledge.  Early morning cycle without breakfast, straight to work and did not eat until lunch resulting in mid-afternoon fatigue. Or I went out on a long cycle, without refuelling properly from the previous day’s session.  It would be a momentous struggle to complete the cycle, as tiredness kicked in and I had no food to take on board.

triathlon nutritionSo as not to repeat these common mistakes, I have prepared a guide for your fuel intake for before, during and after your training session. This is based both on my painful personal experience and reinforced by my studies in Strength and Conditioning, Sports Nutrition and my personal experience with advising clients at metabolise

Firstly the some basic physiology; You need energy to fuel all activities and this fuel is provided by carbohydrate, fat and protein. We burn various combinations of carbohydrate, fat and protein, depending on the training intensity, training duration and fatigue level. In a relaxed state and low-medium intensity exercise, we normally burn fat more than carbohydrate. Fat is an abundant source of energy and we have enough fat on our bodies to fuel activity for days or even weeks. As the intensity of exercise increases, our fuel source switches from predominately fat to carbohydrate. Carbohydrate is an excellent fuel source, as it can release energy more quickly than fat. However, a major drawback of carbohydrate as a fuel source is that we have limited supplies in our bodies. At a decent cycling pace, we have enough carbohydrate to fuel 90 minutes of exercise, although this will vary with training status and diet.

If you are going on a 2 to 3 hour Cycle, then there is a real possibility that you might empty your body’s carbohydrate stores. At which point, the body switches to burning fat.  The consequence of this is that you cannot maintain the same training intensity. It also leads to unpleasant physical consequences: marathon runners call it to “hitting the wall” and cyclists call it “the bonk”. Symptoms include tiredness, fatigue and lack of energy.

The good news is that all this can be easily avoided. By making the correct food choice , we can ensure that we start training with high carbohydrate stores, top them up while we cycle and refuel afterwards to prepare for our next training session.

Pre-Training

Pre training food

Pre training food

You need to ensure that our body’s carbohydrate stores are full, by eating foods such as potatoes, rice, pasta and bread. As a rule, we should eat brown coloured carbohydrates (brown bread, rice, whole grain noodles and pasta) as opposed to white. Brown coloured carbohydrates are healthier for us in the long term and give a more sustained release of energy. Preparing for your training session should begin the day before. Eat a mixture of carbohydrates for breakfast (e.g. weetabix), lunch (e.g. baked potato) and dinner (e.g. pasta). Also, eat carbohydrate containing snacks (e.g. low-fat yoghurt’s) throughout the day. This ensures that you’re giving your body the fuel it needs and the time it needs to process and store it.

If you’re training early in the morning, you might not have time to eat a proper breakfast. In which case, eat a light snack or carbohydrate containing food before training – something that’s not too heavy or rich. If you’re training later in the day, continue to consume carbohydrates throughout the day. Eat your last meal 2-3 hours before your session.

During Training

Follow the above to make sure that you are prepared for training. However, depending on your training intensity, after an hour and a half, you might begin to feel tired. This is because you’ve burned much of your body’s carbohydrate stores and they’re now running low. Your blood sugar levels may also be dropping as your liver carbohydrate is used up. To prevent this, we need to start consuming carbohydrates in order to keep supplying the body with energy. This is easily achieved, but needs some forward planning.

You may experiment with different foods, but the most popular choices are sports drinks and sports gels. These foods are generally designed to ensure quick absorption of sugar into your bloodstream, fuelling exercise. You should be consuming 60-90g carbohydrate per hour. Gels are generally well tolerated but may have some unpleasant side-effects like bloating. Experiment with different gels and drinks to see what’s suitable for you. There are many cheap alternatives to Gels and sports drinks. Raisins and figs are two natural foods which were used by cyclists in years past when sports gels didn’t exist.

Post Training

So, you’ve completed your cycle, maintained a good intensity and are feeling rather pleased with yourself. Well, you’re not finished yet! The last thing you need to do is to refuel and repair your body so that all the potential improvements in fitness from your cycle can be realised.  Firstly, you have a 45-60 minute window after finishing exercise when your body is better able to take up sugar and refuel. What I normally do is drink chocolate milk immediately when I get home. Chocolate milk contains carbohydrate for refuelling, protein for rebuilding the muscles, fluid for rehydration and various electrolytes and nutrients which are important for your health and fitness.

One to two hours after you finish, you can cook and eat a healthy nutritious meal. Although many people prefer pasta, you can eat nearly any carbohydrate containing meal, once it’s low in fat. This will continue the refuelling and rebuilding process and ensures that your fitness will increase. If you trained in the morning, continue to refuel throughout the day by eating carbohydrate containing meals and snacks, every 3-4 hours. Make sure to include protein (e.g. milk, eggs, fish, chicken) in your meals to help repair and rebuild muscle.

I hope you enjoyed this article. Hopefully you will now be properly prepared for your next cycle.

Kevin Beasley is a sports nutritionist who runs Metabolise Sports Nutrition. He has a background in sports science, strength and conditioning and sports nutrition. Metabolise Sports Nutrition is Ireland’s only dedicated sports nutrition consultancy. Metabolise give simple, effective and easy to implement advice to allow you to train and compete to the best of your ability. Check out our website to view the wide range sports nutrition service we offer.

Kevin is an avid cyclist and believes that at 37, it is still not too late for him to achieve his dream of securing a pro-tour contract.

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4 Responses to “Cycling Nutrition for triathletes”

  1. Just wondering how Kevin feels about “training on empty” in order to get body more used to burning fat fuels and in turn making the body more efficient

    January 27, 2012 at 9:31 am
  2. Hi John,

    I actually posted something similar to this on my blog this week:

    http://metabolise.wordpress.com/2012/01/25/high-fat-diets-for-endurance-performance/

    To summarise, I would recommend this strategy as research has shown that it trains the body to become more efficient at burning fat (and saving glycogen).
    However, this is an advanced strategy and I wouldn’t recommend it to beginners. Also, if you are using this, I would advise only once a week as you may become more susceptible to illness (due to depleted glycogen stores) if you train like this regularly.
    Hope this answers your question.
    All the best,
    Kevin

    January 27, 2012 at 6:48 pm
  3. Ray Griffin #

    Hi Kevin.

    I see you recommend drink chocolate milk as a recovery fuel.

    “What I normally do is drink chocolate milk immediately when I get home. Chocolate milk contains carbohydrate for refuelling, protein for rebuilding the muscles, fluid for rehydration and various electrolytes and nutrients which are important for your health and fitness”.

    Some of the chocolate milk recovery shakes seem really expensive. ie Endurox R4 £17 for 6 sachets on evanscycles.com.

    Is there a cheaper way to make my own milk chocolate shake. Could I just mix cocoa powder with milk and if that gives me the same benefits then which milk should I use. Full Cream milk, semi skimmed or skimmed ?

    Thanks, Ray

    February 2, 2012 at 6:52 pm
  4. Hi Ray,

    Apologies for the delay in replying.

    Chocolate milk is one of the most effective (and cheapest) recovery foods. You don’t need to buy an expensive formula online. You can use any of the chocolate milks available in the supermarket (e.g. Yazoo).
    As for which type…it depends on your goal. If you are in an intensive training period and need to consume a lot of calories, then go for the full fat. Otherwise, you can go for the semi-skimmed or skimmed.
    Hope this helps,
    Kevin

    February 15, 2012 at 7:00 pm

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