With triathlon season in full swing and several major local events approaching, it’s a good time to address some of the most common questions around nutrition for triathletes.
Is a Triathlete’s Training Diet Important?
Yes, absolutely.
A triathlete’s training diet should be highly individual and based on the race distance, training load and weekly schedule. Nutrition should be periodised to match different phases of training and used to support recovery, optimise performance and enhance training adaptations.
Meeting daily energy requirements is critical, particularly for athletes training multiple times per day. Adequate intake of carbohydrates, protein and healthy fats across the day supports energy availability, muscle repair and overall resilience.
What Should I Eat on Race Day?
This is often the first question asked, but it is important to get your training diet right before focusing on race day nutrition.
The number one rule for race day nutrition is to practise it beforehand. Race day is not the time to trial new foods or supplements.
In general, most triathletes will benefit from a carbohydrate-rich meal or snack before racing. This should be:
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Low in fibre
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Low in fat
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Easy to digest
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Familiar
Adequate hydration leading into the race is also essential.
What Should I Eat During the Race?
During the bike and run legs, carbohydrate intake is important to help maintain blood glucose levels and replenish glycogen stores.
Carbohydrate-rich foods or sports nutrition products can be used, depending on individual preference and tolerance. Gut training during practice sessions is essential to help the body absorb carbohydrate at higher intensities.
The amount of carbohydrate required will depend on race duration and intensity. A hydration plan should also be in place to help avoid dehydration, particularly in warmer conditions.
Do I Need to Focus on Nutrition After the Race?
Yes, recovery nutrition is important if you want to recover well and return to training sooner.
Post-race meals and snacks should include:
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Carbohydrates to replenish energy stores
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Protein to support muscle repair
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Fluids and electrolytes to rehydrate
Recovery nutrition should begin soon after finishing and continue throughout the remainder of the day.
Individualising Your Triathlon Nutrition Plan
These guidelines provide a general framework only. Every triathlete’s nutrition plan should be individualised, tested in training and adjusted based on race distance, conditions and personal tolerance.
Working with a sports dietitian through individual nutrition consultations can help tailor a plan that supports training, race day performance and recovery across the entire season.