Fuel Your Peak Athletic Performance

Current sports nutrition evidence suggests 1.6–2.0 grams of protein per kilogram of bodyweight per day for individuals engaged in resistance training. This intake supports muscle protein synthesis and adaptation to training stimulus. The total daily amount is more important than the timing of individual meals, though distributing protein across 3–4 meals of approximately 25–40g per serving optimises muscle growth rates.

For endurance athletes, requirements are lower at approximately 1.2–1.4g/kg/day, primarily to offset amino acid oxidation during aerobic activity.

Whole foods should form the foundation of any athlete's nutrition plan. Nutrient-dense foods provide not only macronutrients but also fibre, phytonutrients, and micronutrient cofactors that supplements often cannot replicate. However, supplements serve a practical role when whole foods are unavailable, inconvenient, or insufficient.

Evidence supports supplementation for specific scenarios: creatine monohydrate for strength and power athletes, whey protein isolate around training windows when whole food digestion is impractical, and electrolyte formulas during endurance events exceeding 60 minutes.

The ideal approach: optimise whole food intake first, then add evidence-backed supplements to fill specific nutritional gaps or training demands.

Research consistently demonstrates that daily macronutrient totals (total protein, carbohydrate, and fat intake) are the primary driver of performance outcomes and body composition changes. Meeting total daily protein and carbohydrate targets is far more important than consuming them at specific times.

That said, timing does provide a secondary benefit: consuming approximately 0.3–0.4g of carbohydrate and 20–40g of protein within 1–2 hours post-training optimises muscle protein synthesis and glycogen replenishment. This is a refinement strategy for athletes already meeting daily totals.

Priority order: 1) Daily totals, 2) Meal frequency based on preference, 3) Post-training timing for additional benefits.

Endurance performance depends primarily on carbohydrate availability and hydration status. For events exceeding 90 minutes, consuming 30–60g of carbohydrate per hour (via sports drinks, gels, or solid foods) maintains blood glucose levels and sustains power output.

Base training days should feature moderate carbohydrate intake (3–5g/kg bodyweight) to allow fat oxidation adaptations. Competition days and high-intensity training days require elevated carbohydrate intake (6–10g/kg bodyweight).

Hydration should match sweat rate with electrolyte-containing fluids (sodium supports fluid retention and palatability). Beta-alanine and beetroot extract supplementation provide small performance increments for high-intensity endurance work.

Rapid weight cuts pose health risks including reduced strength, impaired cognitive function, and electrolyte imbalances. Evidence supports a gradual approach: plan to lose 5–7% of bodyweight over 2–4 weeks rather than dropping 10%+ in days.

Maintain protein intake (1.6–2.0g/kg) while reducing total calories primarily from carbohydrate and fat. Moderate sodium depletion over 5–7 days (rather than acute dehydration) minimises performance loss and recovery difficulty.

Post-weigh-in rehydration should prioritise sodium-containing fluids; aim to consume 150% of weight lost over 4 hours. This approach preserves strength for competition while reducing serious health complications.