Whether you’re training for a fun run, grinding through tennis matches, cycling around Melbourne, or pushing through a tough rugby session, how you fuel your body directly shapes how you perform. As any sports chiropractor or chiropractor Melbourne CBD clinician will tell you, nutrition is one of the most overlooked pillars of performance, injury prevention, and recovery.
This guide breaks down the essentials—carbohydrates, protein, hydration, sweat rates, carbohydrate periodization, and energy availability—using high‑quality, evidence‑based sources.
1. Pre‑Exercise Fueling: Carbohydrates, Protein & Hydration
Carbohydrates: Your Primary Fuel Source
Carbohydrates are the body’s preferred energy source for moderate to high‑intensity exercise. They top up muscle glycogen—the fuel your muscles burn during running, cycling, tennis, and rugby.
Research shows that consuming carbohydrates before exercise increases glycogen stores and improves performance, especially for sessions longer than 60 minutes.
Examples of pre‑exercise carbs:
- Oats with banana
- Toast with honey
- Rice or pasta
- Fruit smoothie
Sports Dietitians Australia recommends choosing easily digestible, low‑fibre carbs 1–4 hours before exercise to avoid gut discomfort. General intenisty fueling prior to exercise <90mins 5-7g/kg per 24 hours and for pre-event fueling 1-4g/kg.
Protein: Supporting Muscle Function
Protein helps stimulate muscle protein synthesis and supports recovery. It is best consumed 4-5 times throughout the day in .25-.30g per kg.
Good protein sources:
- Greek yoghurt
- Eggs
- Lean chicken
- Protein smoothie
Hydration: Start Hydrated, Stay Hydrated
Hydration affects muscle function, temperature regulation, and mental sharpness. UCLA Health highlights that water or electrolyte drinks before training help prepare the body for performance.
Sip fluids steadily in the hours leading up to exercise rather than chugging right before you start.
👉 Learn more about how Melbourne city sports chiropractor helps athletes and active individuals mitigate their injury risks and boost performance through training load monitoring.
2. Understanding Sweat Rates & Fluid Loss
Sweat rates vary dramatically between individuals—from almost zero to 5 litres per hour—depending on genetics, intensity, clothing, and climate. This is why two runners or cyclists training side‑by‑side can have completely different hydration needs.
Typical sweat rates range from 0.5 to 2 litres per hour for most athletes with an average around 1.35 litres per hour. Noting that salty sweaters (those whose clothes often have salt stains on them) will require more sodium replenishment than normal sweaters.
Why Sweat Rate Matters
Knowing your sweat rate helps you:
- Prevent dehydration
- Avoid over‑drinking (which can cause hyponatremia)
- Tailor electrolyte intake
- Improve performance in hot conditions
A simple way to estimate sweat rate:
- Weigh yourself before exercise.
- Train for 60 minutes.
- Weigh yourself again.
- Every 1 kg lost ≈ 1 litre of sweat.
This is especially useful for endurance athletes, tennis players, and rugby players who train in varied weather conditions.
3. Post‑Workout Recovery: Carbs, Protein & Fluids
After exercise, your body is primed to repair muscle tissue and replenish glycogen.
Carbohydrates
Carbs restore depleted glycogen stores. This is crucial after long runs, intense cycling sessions, or rugby training.
Protein
Protein supports muscle repair and growth. Combining carbs + protein post‑exercise improves recovery more than either nutrient alone. Bodybuilding forums will tell you protein needs to be ingested within 30 mins of training, however data shows the window for protein to stimulate muscle protein syntehsis is very wide (upto 24 hours post exercise).
Hydration & Electrolytes
Rehydration should replace both fluid and electrolytes lost in sweat. Sodium is the primary electrolyte lost, averaging 0.8 g per litre of sweat. Milk based products are a great recovery drink option as milk contains protein, carbohydrates and electrolytes.
4. Carbohydrate Periodization: Fuel for the Work Required
Carbohydrate periodization means adjusting your carb intake based on the demands of the day:
- High‑intensity or long sessions → higher carb intake
- Low‑intensity or recovery days → lower carb intake
This strategy is widely used in endurance sports like cycling and running. While some studies show metabolic benefits, systematic reviews indicate that carbohydrate periodization does not consistently improve performance compared to a high‑carb diet.
Still, it remains a practical tool for athletes who want to match fuel to training load.
5. Energy Availability: Avoiding the Danger Zone
Energy availability refers to how much energy your body has left for normal physiological function after accounting for the energy you expend during exercise. When energy availability drops too low—often because athletes unintentionally under‑fuel relative to their training load—the body begins to down‑regulate essential systems.
According to the 2023 International Olympic Committee (IOC) Consensus Statement on Relative Energy Deficiency in Sport (REDs), low energy availability is the primary cause of REDs and can affect:
- Metabolic rate
- Hormonal function
- Bone health
- Immune function
- Cardiovascular health
- Psychological wellbeing
- Performance capacity
The IOC highlights that REDs can occur in any athlete, regardless of gender, body size, or sport. It is especially common in endurance sports like running and cycling, as well as weight‑sensitive or high‑volume sports such as tennis and rugby.
Why This Matters for Everyday Athletes
For recreational and competitive athletes alike, chronic low energy availability can lead to:
- Persistent fatigue
- Recurrent injuries
- Reduced training quality
- Mood changes
- Poor recovery
- Decreased performance
This is why matching your daily energy intake to your training demands is essential—not just for elite athletes, but for anyone training regularly.
A sports chiropractor or chiropractor Melbourne CBD with experience in sports performance can help identify signs of low energy availability and guide you toward safer, more effective training and fueling strategies
6. Electrolyte Drinks: Hypotonic vs Isotonic vs Hypertonic
Electrolyte drinks differ based on their concentration relative to the body’s natural fluids.
Hypotonic Drinks
- Lower concentration than body fluids
- Absorbed quickly
- Best for rapid hydration
- Ideal for hot‑weather running, tennis, cycling, and rugby
- Examples: Hydralyte Sport, SOS Hydration
Isotonic Drinks
- Similar concentration to body fluids
- Provide hydration + moderate carbohydrate
- Good for moderate‑intensity sessions
Hypertonic Drinks
- Higher concentration
- Slow absorption
- Best used after exercise to replenish carbohydrate stores
- Not ideal during exercise (can cause GI upset)
For most athletes, hypotonic drinks are the best choice for electrolyte replacement during training and competition.
7. Practical Food Lists
High‑Carbohydrate Foods
- Rice, pasta, noodles
- Bread, wraps, crumpets
- Oats, muesli
- Bananas, apples, berries
- Potatoes, sweet potatoes
- Rice cakes
- Sports drinks or gels (during long sessions)
High‑Carbohydrate Foods
- Sports drinks or gels (during long sessions)
- Rice, pasta, noodles
- Bread, wraps, crumpets
- Oats, muesli
- Bananas, apples, berries
- Potatoes, sweet potatoes
- Rice cakes
Hypotonic Electrolyte Options
- Hydralyte Sport
- SOS Hydration
- Nuun Sport (low‑carb electrolyte tablets)
Final Thoughts
Fueling for peak performance doesn’t need to be complicated. By understanding your body’s needs—carbohydrates, protein, hydration, sweat rate, and energy availability—you can train harder, recover faster, and reduce injury risk.
If you’re unsure how to tailor your nutrition to your training load, a sports chiropractor Melbourne CBD or chiropractor Melbourne city with experience in sports performance can help guide your approach. Book your appointment today at Shannon Clinic Melbourne. You can find our clinic here, located in the Melbourne CBD on Collins Street.
