Plant-Forward Fuelling For Endurance Sports

Unlock your endurance potential with plant-forward fuelling. Whether you’re training for a triathlon, marathon, or long-distance ride, the right mix of plant-based foods, hydration strategies, and targeted supplements can help you go further, recover faster, and feel stronger.

In this guide, we’ll break down what plant-forward fuelling really means for athletes, the key benefits, watch-outs, practical fuelling and recovery strategies, and which supplements are actually worth your time.

What Is Plant-Forward Fuelling For Athletes?

Plant-forward fuelling prioritises whole, minimally processed plant foods, think vegetables, fruits, grains, legumes, nuts, and seeds, while still being flexible enough to meet the demands of endurance training.

This approach can look different depending on the athlete:

• Plant-based → Mostly plant foods, with little or no animal products

• Vegetarian → No meat, but may include dairy and eggs

• Vegan → Excludes all animal-derived foods

All of these approaches can support endurance performance when planned properly. The key is ensuring energy intake, protein quality, and micronutrients keep up with training and competition demands.

Benefits & Considerations Of A Plant-Forward Diet

A plant-forward diet can be a powerful performance tool for endurance athletes, but like any fuelling strategy, it works best when it’s intentional.

Benefits
Plant-forward diets tend to support heart health, recovery, and overall diet quality¹,². They’re typically rich in carbohydrates for training fuel, antioxidants to manage training stress, and unsaturated fats that support cardiovascular function. Many athletes also enjoy improved digestion, faster recovery, and the added bonus of fuelling in a more environmentally sustainable way³⁻⁶.

Considerations
The biggest challenge isn’t whether plant-forward diets work, it’s whether they’re planned well. Athletes need to be mindful of nutrients like vitamin B12, iron, omega-3s, calcium, zinc, and protein, which can be harder to meet without strategy⁷,⁸. High fibre intake can also cause gut issues if timing isn’t managed carefully, especially around key training sessions and races.

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Vegetarian and vegan diets typically provide higher antioxidant, polyphenol, and micronutrient density, which supports vascular function, recovery, and reduced oxidative stress¹⁻⁶. However, plant proteins generally have lower digestibility and leucine density compared to animal proteins, meaning athletes may need slightly higher total protein intake or complementary protein sources to maximise muscle protein synthesis⁷⁻⁸. In addition, non-heme iron has lower bioavailability and omega-3 conversion from ALA to EPA and DHA is limited, which can influence oxygen transport, recovery, and adaptation in high-load endurance training⁷⁻⁸.

Plant-Based Energy & Hydration Tips For Endurance Training

• Carbohydrates drive performance
  → 0-30g/hour for sessions under 1 hour
  → 30-60g/hour for 1-2 hours
  → 60-120g/hour for 2-3 hours¹⁰⁻¹²

• Hydration matters
  →Aim for around 100-150 mL of an electrolyte drink every 15-20 minutes. →Remember: sports drinks contribute to both fluid and carb intake¹³.

• Plant-based fuelling options
  →Most sports nutrition products are naturally plant-based. Reliable options include isotonic gels, energy chews, maple syrup gels, fruit purées, and carb drink mixes. →Always trial fuelling strategies in training, not on race day.

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Carbohydrate intake during endurance exercise has been consistently shown to improve performance, delay fatigue, and preserve glycogen stores¹⁰⁻¹². Electrolyte-carbohydrate solutions improve fluid absorption and help maintain blood glucose levels during prolonged exercise¹³.

Optimising Post-Race Recovery With Plant-Based Nutrition

Recovery starts as soon as training ends. Prioritising carbohydrates and high-quality plant protein helps restore energy stores and kick-start muscle repair.

Aim for 1-1.2g of carbohydrate per kg of body weight alongside 25-35g of complete plant protein as soon as possible after training¹⁴⁻¹⁶. Blended protein sources (pea, soy, rice, hemp) work best, especially when they provide around 2-3g of leucine to stimulate muscle protein synthesis¹⁵⁻¹⁶.

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Combining carbohydrates with protein post-exercise enhances glycogen resynthesis and muscle repair compared to carbs alone¹⁴. Leucine plays a key role in activating muscle protein synthesis, which is why blended plant proteins such as PILLAR Performance Plant Protein- Vanilla outperform single-source options¹⁵⁻¹⁶.

Supplements for Plant-Based, Veg & Vegetarian Athletes

• Vitamin B12 → Essential for energy production and nerve health

• Iron → Particularly important for endurance athletes with high training loads

• Omega-3s (EPA/DHA) → Algal oil supports cardiovascular health and recovery

• Plant-based protein powders → Useful for meeting protein and leucine targets when whole foods fall short. A great option is PILLAR Performance Plant Protein- Vanilla.

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Vitamin B12 is difficult to obtain in adequate amounts from plant foods alone, which is why supplementation is strongly recommended for plant-based athletes to support energy levels and nervous system health 17. Omega-3s needs can also be met more effectively with algal oil supplements, which provide EPA and DHA directly rather than relying on the body’s inefficient conversion from ALA 18. When training demands are high, plant-based protein powders such as  PILLAR Performance Plant Protein- Vanilla can be a practical way to bridge the gap, helping athletes meet overall protein needs and improve amino acid quality to better support recovery 10,15-16.

Final Thoughts: Getting the Most Out Of Plant-Forward Fuelling

Plant-forward fuelling can absolutely support endurance performance, but success lies in the details. Prioritise carbohydrates for training and racing, plan protein strategically, supplement where needed, and manage fibre timing to keep your gut happy.

Fuel smart, recover well, and let the plants do the heavy lifting.

References

1. Huang RY, Huang CC, Hu FB, Chavarro JE. Vegetarian diets and weight reduction: a meta-analysis of randomized controlled trials. J Am Heart Assoc. 2012;1(4):e000110. doi:10.1161/JAHA.112.000110

2. Dinu M, Abbate R, Gensini GF, Casini A, Sofi F. Vegetarian, vegan diets and multiple health outcomes: a systematic review with meta-analysis of observational studies. Crit Rev Food Sci Nutr. 2017;57(17):3640-3649. doi:10.1080/10408398.2016.1138447

3. Craddock JC, Probst YC, Daniel N. Plant-based diets and inflammatory biomarkers: a systematic review and meta-analysis. Adv Nutr. 2021;12(5):1677–1692. doi:10.1093/advances/nmab071

4. Shivappa N, Hébert JR. Associations between plant-based dietary index and dietary inflammatory index scores and markers of inflammation. Br J Nutr. 2017;117(5):761–767. doi:10.1017/S0007114517000445

5. Dinu M, Abbate R, Gensini GF, Casini A, Sofi F. Vegetarian, vegan diets and multiple health outcomes: a systematic review with meta-analysis of observational studies. Crit Rev Food Sci Nutr. 2017;57(17):3640–3649. doi:10.1080/10408398.2016.1138447

6. Carey CN, Paquette M, Sahye-Pudaruth S, Dadvar A, Dinh D, Khodabandehlou K, Liang F, Mishra E, Sidhu M, Brown R, Tandon S, Wanyan J, Bazinet RP, Hanley AJ, Malik V, Sievenpiper JL, Jenkins DJ. The Environmental Sustainability of Plant-Based Dietary Patterns: A Scoping Review. J Nutr. 2023 Mar;153(3):857-869. doi: 10.1016/j.tjnut.2023.02.001. Epub 2023 Feb 6. PMID: 36809853.

7. Gibbs J, Cappuccio FP. Common nutritional shortcomings in vegetarians and vegans. Dietetics. 2024;3(2):114–128. doi:10.3390/dietetics3020010.

8. Malhotra A, Lakade A. Analytical Review on Nutritional Deficiencies in Vegan Diets: Risks, Prevention, and Optimal Strategies. Journal of the American Nutrition Association. 2025. doi:10.1080/27697061.2025.2461218. 

9. Sports Dietitians Australia. Food for your sport – Distance Running [Internet]. Canberra (ACT): Sports Dietitians Australia; c2016 [cited 2025 Dec 02]. Available from: https://www.sportsdietitians.com.au/factsheets/community-factsheets/food-for-your-sport-distance-running/

10. Thomas DT, Erdman KA, Burke LM. Nutrition and athletic performance. Med Sci Sports Exerc. 2016;48(3):543–68.

11. Jeukendrup A. Carbohydrate intake during exercise and performance. Nutrition. 2004;20(7–8):669–77.

12. Burke LM, Hawley JA, Wong SHS, Jeukendrup AE. Carbohydrates for training and competition. J Sports Sci. 2011;29(S1):S17–27.

13. Sawka MN, Burke LM, Eichner ER, Maughan RJ, Montain SJ, Stachenfeld NS. American College of Sports Medicine position stand: Exercise and fluid replacement. Med Sci Sports Exerc. 2007;39(2):377–390. doi:10.1249/mss.0b013e31802ca597

14. Jeukendrup AE, Killer SC. The optimal carbohydrate intake during exercise. Int J Sport Nutr Exerc Metab. 2010;20(1):22-35.

15. Phillips SM, Van Loon LJ, Diment BC, et al. Protein ‘requirements’ beyond the RDA: Implications for optimizing health. Appl Physiol Nutr Metab. 2016;41(5):565-572.

16. Atherton, P. J., & Smith, K. (2012). "Muscle protein synthesis in response to nutrition and exercise." Journal of Physiology, 590(5), 1049-1057.

17. Ali N, Helen L, Martin W, Lucian H, Kourosh RA. Double‑burden of functional vitamin B12 deficiency among non‑supplemented vegan adults: a systematic review and meta‑analysis. Proc Nutr Soc. 2023;82(OCE5):E362.

18. Störk S, Koletzko B, Hellmig S, et al. Comparative analysis of fatty acid profiles across omnivorous, flexitarian, vegetarian, and vegan adults: findings from the NuEva study. Lipids Health Dis. 2025;24:133.

Disclaimer:

The content in this blog is for general information only and is not a substitute for professional medical advice, diagnosis, or treatment. Always speak with your doctor or allied health team before changing your diet, exercise, or taking supplements, especially if you have a health condition or take medication. Please use this information as a guide only. Aid Station doesn't take responsibility for individual outcomes.