Ultimate Guide to Endurance Supplements & Nutrition
Discover the ultimate guide to fueling your endurance with effective supplements, nutrition strategies, and real-world tips. Enhance your performance and achieve your goals with expert advice on endurance nutrition.
Benjamin Bunting BA(Hons) PgCert., AAPTI.
2/26/20257 min read
1. Introduction: Fueling Strategies for Endurance Athletes
Imagine reaching mile 20 of a marathon and feeling your energy reserves all but gone, or cycling for 3 hours but finding that your pace has dropped despite dedicated training.
Endurance athletes push themselves hard in pursuit of personal bests but something's still missing: an effective fueling strategy.
Even with meticulous training, it can take more than training alone to unlock peak performance. A well-defined fueling strategy may be just the key.
Optimised fueling goes beyond eating; it involves understanding your body's energy requirements, replenishing vital resources, and fine-tuning nutrition to achieve peak performance.
This guide offers a comprehensive approach to fueling endurance pursuits; we'll delve into science behind energy systems, essential nutrition and hydration strategies, dissect the supplement world, share tips to conquer any distance, as well as practical tips that'll fuel you fire!
Let's discover together!
2. Understanding Energy Demands of Endurance Activities
Endurance sports encompass a diverse array of physical exertions that require sustained physical effort over extended periods, from 5Ks to ultramarathons, cycling (road races, mountain biking and long-distance touring), swimming (open water triathlons), triathlons themselves and even activities like cross-country skiing and long-distance hiking are considered endurance sports.
The one thing they all share in common is maintaining consistent effort levels over a prolonged duration.
As part of their activities, our bodies use two primary energy systems for fuel: aerobic and anaerobic metabolism - or "gears in your engine".
Aerobic Metabolism:
Your aerobic metabolism is the keystone of endurance exercise. This system uses oxygen to convert carbohydrates, fats and (to a lesser extent) proteins into energy for use as energy for energy use in long, steady climbs. Think of this process as your low gear!
Anaerobic Metabolism:
Activated during bursts of high intensity activity like sprinting or climbing steep hills.
Anaerobic metabolism provides energy production without needing oxygen, though energy produced may be less efficient and byproducts like lactate are generated which lead to fatigue - this gear should only be used temporarily!
Anaerobic metabolism should only be sustained for short bursts; its performance becomes unsustainable over extended periods.
Our bodies rely on three primary fuel sources - carbohydrates, fats and proteins - as fuel for keeping us going. Each contributes significantly towards keeping you going.
Carbohydrates:
Your go-to fuel for endurance activities. Carbs easily convert to glucose, which your muscles and liver store as glycogen as an instant energy source when necessary for high intensity efforts - carbs act like quick-burning fuel perfect for bursts of speed!
Fats:
Essential fuel source for longer, lower intensity activities. Fats offer more concentrated energy than carbohydrates but their metabolism occurs slowly; making fat an ideal way to sustain effort over distance.
Proteins:
While not the primary fuel source, protein plays an integral part in muscle repair and recovery as well as energy production during long endurance events when glycogen stores have become depleted. Protein is essential in rebuilding and maintaining an engine.
endurance activities burn an enormous number of calories, so accurately estimating energy expenditure is critical to maintaining energy balance and avoiding fatigue.
Body weight, activity intensity, duration, environmental conditions all impact caloric needs - online calculators or wearable devices can give estimates but individual experimentation should always take precedence.
A general guideline for endurance athletes would be 60-70% carbohydrates, 20-30% fats and 10-15% proteins at any one time with ratios adjusted depending on needs, training intensity or event duration - finding what works for each athlete is always the ultimate aim!
3. Nutrition Strategies for Peak Endurance Performance
Proper nutrition before, during, and after your workout is essential for optimal performance. Think of it as fueling up before hitting the pavement - one of three pillars of endurance nutrition.
Carbohydrate loading can significantly enhance performance for events lasting 90 minutes or more.
This involves increasing carb consumption in the days preceding an event to build glycogen stores. Consume a carb-rich meal or snack approximately 2-3 hours prior to training or competition - easy digestible foods like oatmeal, bananas, toast with jam or sports drink are ideal options to ensure light and energetic feelings come race day!
Attempt to avoid high-fat, high-fiber or overly processed options which could cause digestive distress; the goal should be feeling light- not weighted down at race day!
Consistent fueling becomes even more essential as events extend longer.
Water should suffice for events lasting less than an hour; for events lasting 1-3 hours aim for 30-60 grams per hour of carbohydrates; 60-90 grams should be provided over time at longer events.
Gels and chews offer quick access to carbohydrates while real food options like bananas, energy bars or small sandwiches may also prove effective sources of carbs if preferred by your gut - experiment during training to find what works best!
Regular fueling helps stabilise blood sugar levels to protect against energy crashes as well as fatigue - don't wait until hunger sets in before making changes; rather proactively fuel before hunger takes effect!
After an intense workout or race, your body requires both protein and carbohydrates to repair muscle damage and replenish glycogen stores.
Aim to consume a recovery meal or snack within 30-60 minutes after finishing your activity.
Aim for 20-30 grams of protein (or 1.5-2 grams per kilogram of bodyweight) and 1-1.2 grams per kilogram bodyweight of carbohydrates would be an ideal combination.
Some examples would include a protein shake with fruit, Greek yoghurt with granola or chicken breast with sweet potato as this will refuel and rebuild while also setting you up for another challenge ahead.
4. Hydration as the Key Component of Endurance Training
Dehydration can significantly impair performance, leading to fatigue, muscle cramps and decreased cognitive functioning.
Even mild dehydration (as little as 2% body weight loss) can severely decrease endurance performance.
Electrolytes play an integral part in fluid balance, muscle function and nerve transmission; endurance activities often lead to electrolyte losses via sweat.
Proper hydration goes beyond simply drinking more water; it involves maintaining the ideal balance.
Hydration is essential; make sure you drink enough water both during and after exercising.
Start hydrating before beginning any activity, such as running or cycling, by drinking plenty of water during the days leading up to it and during workouts or races.
Be sure to drink regularly during activity as well - aim to ingest 200ml every 15-20 minutes depending on sweat rate, environmental conditions and individual needs.
Replenish lost fluids after your activity by weighing yourself before and after to estimate fluid losses and replenish lost hydration accordingly.
To calculate your sweat rate, weigh yourself before and after an hour-long workout and record how much fluid was consumed during that period.
Simply see how many grams of weight were lost over that 60 mins, and the number of grams lost is amount of mls you lost in sweat per hour of exercise - giving a good estimate of how much fluid needs replacing per session of physical activity.
Rehydrate with electrolytes by sipping electrolyte-rich beverages such as sports drinks or homemade options like homemade electrolyte drinks made from water, salt and lemon or lime juice with honey or maple syrup for sweetness.
Dehydration symptoms include thirst, dry mouth, headache, dizziness and dark urine.
Hyponatremia occurs when sodium levels in the blood drop due to excessive water consumption without replacing electrolytes in sufficient amounts - symptoms include nausea, headache confusion and muscle weakness - so listen carefully and adjust your hydration strategy as required.
5. Supplements for Endurance Athletes: Separating Fact from Fiction
Supplements can be confusing and misleading, with lots of hype and questionable claims floating around the marketplace. Here is an overview of some supplements which could benefit endurance athletes based on science:
Creatine may be associated with strength training, but endurance athletes may find creatine useful in improving short bursts of power like sprinting or hill climbing. A typical dosage for creatine for endurance athletes should range between 3-5 grams daily.
Caffeine is a well-known stimulant, known for enhancing alertness, decreasing perceived exertion and improving endurance performance.
Aim to consume 3-6 mg per kilogram of bodyweight about an hour prior to physical activity in order to avoid side effects like anxiety and insomnia.
Beta-alanine helps buffer muscle acidity, potentially postponing fatigue during high intensity efforts. A typical dosage for beta-alanine is 2-5 grams taken twice per day in divided doses.
Nitrate/red spinach extract improves oxygen efficiency allowing you to work harder for longer. Consume 5-7mmol of nitrate 2-3 hours prior to exercise, along with 5-10 grams of BCAAs during or post-exercise for muscle protection during prolonged endurance events.
Iron is essential for oxygen transport; deficiency in endurance athletes (particularly women) is common and dosage should be prescribed according to severity. Consult a medical practitioner.
Disclaimer: To ensure optimal results from a supplement regimen, always seek advice from a healthcare provider or registered dietitian before beginning one. They can assess individual needs, risks, and interactions between medications.
Be wary of unsubstantiated claims regarding supplements. CoQ10 and Rhodiola Rosea may offer some potential advantages, but more research needs to be conducted before making definitive statements about them.
6. Fueling Strategies and Tips that Really Work
Never try anything new on race day! That is the golden rule of endurance fueling. Instead, experiment with various fueling strategies during training runs and rides until you find one that works best for your body.
Create a detailed fueling plan for your race that includes what and when you will consume food/drink during its consumption process and how best to carry it with you - practice makes perfect, including for your gut!
Gut issues are a common complaint among endurance athletes. To reduce discomfort, strategies include avoiding high-fat and high-fiber foods before and during exercise, practicing your fueling plan during training sessions, and considering using easily digestible carb sources like gels or chews.
Environmental conditions can have an enormous effect on fueling needs: in hot weather you should increase fluid and electrolyte consumption, in cold weather more calories may be required to maintain body temperature.
At altitude your body might require additional carbohydrates - plan according to current circumstances!
7. Gain Insight from Experts
"Fueling correctly is key to endurance performance. Not just what, but when and how often is important. A tailored plan tailored specifically to you and the demands of your event is key for its success." - Benjamin Bunting, Sports Nutritionist
8. Avoid Common Mistakes
Mistaken fueling decisions can sabotage even the most dedicated athlete. Here are some common hazards you should watch out for:
Under-Fueling or Over-Fueling: Finding the proper balance is critical: too little fuel could result in bonk, while too much could cause GI distress.
Ignoring Hydration: Even your best plans could go off track if dehydration sets in; don't neglect hydration!
Avoid Experimentation on Race Day: Do what works and avoid trying anything new on race day.
Consider Replenishment of Electrolytes To Prevent Cramping And Fatigue: Maintain adequate levels of electrolytes throughout your body in order to prevent cramps and fatigue during training and race day.
9. Fuel Your Endurance Journey
Fueling endurance pursuits is a journey of constant discovery and refinement. There's no one-size-fits-all approach - what works for one athlete may not work for another - the key is understanding energy systems science, experimenting with various nutrition and hydration strategies and listening to your body.
Conclusion
Be consistent. Don't just focus on race day fueling; make smart nutrition choices every day that support training and recovery.
By taking an intentional, tailored approach to fueling, you can unlock your full potential and reach your endurance goals more quickly. So get out there, experiment, refine your plan, and fuel up!
We at beForm Nutrition are here to support you on this journey with premium supplements tailored for endurance athletes - good luck with training!
Enhance your running performance with our science backed supplements.
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*Moss, K., Kreutzer, A., Graybeal, A.J., Zhang, Y., Braun-Trocchio, R., Porter, R.R. and Shah, M. (2023). Nutrient Adequacy in Endurance Athletes. International Journal of Environmental Research and Public Health, 20(8), p.5469. doi:https://doi.org/10.3390/ijerph20085469.