Nutrition for Performance

You can have the best training program in the world, but if your nutrition is off, your results will be limited. Food is fuel — and the quality of your fuel directly impacts the quality of your performance and recovery.

Calories: The Foundation

Everything in nutrition starts with energy balance. If you eat more calories than you burn, you gain weight. If you eat fewer, you lose weight. If you eat roughly the same, you maintain.

For weight loss, you need a calorie deficit — but not an extreme one. Too large a deficit leads to muscle loss, fatigue, and unsustainable hunger. A moderate deficit of 300–500 calories per day is enough to lose fat while preserving muscle.

For strength and muscle gain, you need a slight calorie surplus — enough to fuel recovery and growth without excessive fat gain.

Protein: The Most Important Macronutrient for Training

Protein is the building block of muscle. Without adequate protein, your body can't repair and build muscle tissue effectively — no matter how hard you train.

Aim for 1.6–2.2g of protein per kg of body weight per day. For a 70kg person, that's roughly 112–154g of protein daily. Spread it across 3–4 meals for best absorption.

Good protein sources include chicken, fish, eggs, beef, dairy, tofu, and legumes.

Carbohydrates: Your Training Fuel

Carbohydrates are your body's preferred energy source during exercise. Cutting carbs too aggressively can hurt your performance and recovery. The key is timing — prioritise carbs around your training sessions.

Pre-workout: A carbohydrate-rich meal or snack 1–2 hours before training gives you fuel for the session.

Post-workout: Carbohydrates after training help replenish glycogen stores and support recovery.

Hydration: Often Overlooked

Even mild dehydration (1–2% of body weight) impairs strength, endurance, and cognitive function. Aim for at least 2–3 litres of water per day, more on training days.

Consistency Over Perfection

You don't need to eat perfectly to see results. You need to eat well, consistently. One bad meal doesn't derail progress — just as one good meal doesn't create it. Focus on building sustainable habits rather than chasing a perfect diet.

If you're unsure how to structure your nutrition around your training goals, speak to our coaches at Primeflx Performance. We can help you build a practical nutrition approach that supports your program.