Nutrition for Active Lifestyle Support

Pre-workout nutrition focuses on providing energy and preventing fatigue during exercise by delivering carbohydrates and moderate protein 3-4 hours before activity, or a light snack 30-60 minutes before. Post-workout nutrition prioritises recovery by rapidly replenishing glycogen stores and providing protein for muscle repair within 30 minutes after exercise. Pre-workout fuelling emphasises sustained energy release, while post-workout fuelling emphasises rapid absorption and recovery signalling.

Research indicates that active individuals benefit from 1.6-2.0g protein per kilogram of body weight daily, distributed across 4-5 meals throughout the day. This supports muscle protein synthesis, adaptation to training, and recovery. For a 70kg person, this equates to 112-140g daily protein. However, individual needs vary based on training intensity, frequency, type of sport, age, and body composition goals. More frequent resistance training typically demands the higher end of this range.

Sports drinks are beneficial primarily during exercise lasting more than 60 minutes, particularly in hot conditions. They provide carbohydrates for fuel and electrolytes (sodium, potassium) to maintain hydration and prevent cramping. For lower-intensity exercise under 60 minutes, water alone is typically sufficient. For longer efforts, aim for 30-60g carbohydrates per hour. Plain water with electrolyte supplements or homemade sports drinks (water, fruit juice, salt) are equally effective alternatives to commercial products.

Fasted exercise—training without prior fuel—is possible but typically reduces performance intensity and volume compared to fuelled exercise. Some individuals use low-intensity fasted training as part of body composition strategies, but high-intensity or long-duration fasted exercise may compromise muscle preservation, training quality, and recovery. For optimal performance and adaptation, consuming a pre-exercise meal or snack 30 minutes to 4 hours before training is strongly recommended. Individual tolerance varies, and personal preference should guide decisions.

Adequate carbohydrate intake supports sustained training intensity and mental focus. Signs of insufficient carbohydrate intake include early fatigue, inability to maintain training pace, prolonged recovery times, weakened immune function, and difficulty concentrating during exercise. Individual carbohydrate needs range from 3-10g per kilogram of body weight daily, depending on training volume and intensity. Moderate training (1 hour daily) typically requires 3-5g/kg, while intense endurance training (2+ hours daily) may require 8-10g/kg. Energy levels, training performance, and recovery patterns are practical indicators of adequate fuel.

Before exercise, minimise high-fibre foods, large quantities of fat, spicy foods, and excessive dairy products, as these can cause digestive discomfort. Avoid foods you know cause bloating or gastrointestinal distress. Additionally, foods high in fibre (raw vegetables, beans, bran cereals) consumed close to exercise (within 2 hours) may cause cramping or urgency. The optimal pre-exercise meal contains carbohydrates and protein with minimal fibre and fat. Timing matters significantly—the closer to exercise, the simpler and smaller the meal should be. Individual tolerance varies considerably, so experimenting during training (not competition) helps identify your personal preferences.