Nutrition plays a fundamental role in sustaining high energy levels and optimising physical performance. Whether you are an athlete, a gym enthusiast, or someone looking to maximise daily productivity, the right dietary choices can enhance endurance, strength, and cognitive function.
Scientific research supports the profound effects of diet on energy metabolism and overall performance. Here are six evidence-based nutrition hacks that will help you improve energy and performance effectively.
1. Prioritise Complex Carbohydrates for Sustained Energy
Carbohydrates are the body’s primary source of energy, but not all carbs are created equal. Complex carbohydrates, found in whole grains, legumes, and vegetables, provide a slow and steady release of glucose, preventing energy crashes. Studies have shown that low glycaemic index (GI) carbohydrates improve endurance performance by maintaining blood glucose levels for prolonged periods (Stevenson et al., 2017).

Whole foods like oats, quinoa, and sweet potatoes help stabilise energy levels and enhance sustained athletic output.
The Role of Glycogen in Performance
Glycogen, stored in muscles and the liver, is the body’s primary fuel during high-intensity exercise. Consuming complex carbs replenishes glycogen stores efficiently, improving stamina and preventing early fatigue (Burke et al., 2011). A diet rich in whole grains and fibrous vegetables ensures optimal glycogen levels for sustained energy throughout workouts and daily activities.
2. Maintain Optimal Hydration with Electrolytes
Dehydration can significantly impair physical and cognitive performance. Water alone is insufficient for maintaining electrolyte balance, which is crucial for muscle contractions, nerve function, and hydration at the cellular level. Research indicates that a loss of just 2% of body weight in fluids can reduce athletic performance by up to 20% (Sawka et al., 2007).
Electrolytes for Energy Regulation
Electrolytes such as sodium, potassium, magnesium, and calcium help regulate fluid balance and muscle function. Studies suggest that consuming electrolyte-rich drinks enhances endurance and prevents cramping, particularly in prolonged exercise sessions (Cheuvront et al., 2010). Coconut water, electrolyte tablets, and mineral-rich foods like bananas and leafy greens can help maintain hydration and performance.
3. Increase Protein Intake for Muscle Recovery and Strength

Protein is essential for muscle repair, growth, and overall performance. High-protein diets have been shown to enhance strength, recovery, and endurance in athletes (Moore et al., 2015). Consuming adequate protein prevents muscle breakdown, accelerates recovery, and supports sustained energy levels.
Timing and Quality of Protein Matters
Consuming protein-rich meals post-exercise enhances muscle protein synthesis (MPS), which is crucial for recovery. A study by Morton et al. (2018) found that distributing protein intake evenly across meals significantly improves MPS compared to consuming most protein in a single meal. High-quality protein sources such as lean meats, eggs, dairy, and plant-based options like lentils and quinoa optimise performance and recovery.
4. Use Healthy Fats for Long-Lasting Energy
While carbohydrates provide immediate energy, healthy fats serve as a long-term energy source, especially during low-to-moderate intensity activities. Fats are calorie-dense and provide sustained fuel for endurance athletes and active individuals. Research has demonstrated that high-fat diets improve metabolic flexibility and endurance capacity by enhancing fat oxidation (Volek et al., 2016).
Best Sources of Healthy Fats
Incorporating omega-3 and monounsaturated fats into your diet can boost energy and cognitive function. Foods such as avocados, nuts, seeds, olive oil, and fatty fish (e.g., salmon, mackerel) provide essential fatty acids that improve brain function and reduce inflammation (Swanson et al., 2012). These fats also help stabilise blood sugar levels, preventing energy crashes associated with high-carb meals.

5. Optimise Micronutrient Intake for Energy Production
Vitamins and minerals play a crucial role in metabolic pathways that produce energy. Deficiencies in key micronutrients can lead to fatigue, poor performance, and slower recovery times. Research has identified several micronutrients that are particularly important for maintaining high energy levels.
Key Micronutrients for Performance
- Iron: Essential for oxygen transport in the blood. Iron deficiency can cause fatigue and reduced endurance (Beard et al., 2001). Red meat, lentils, and spinach are rich sources of iron.
- Magnesium: Involved in over 300 enzymatic reactions, including energy metabolism and muscle function (Nielsen et al., 2010). Nuts, seeds, and whole grains are excellent sources.
- B Vitamins: Crucial for converting food into energy. A deficiency in B vitamins can lead to lethargy and reduced cognitive function (Kennedy, 2016). Eggs, dairy, and leafy greens provide ample B vitamins.
- Vitamin D: Supports muscle function and immune health. A lack of vitamin D is linked to decreased strength and increased risk of injury (Hamilton et al., 2010). Sun exposure, fatty fish, and fortified dairy help maintain adequate levels.
6. Time Your Meals and Supplements Strategically
Nutrient timing is critical for maximising energy levels and performance. Consuming the right nutrients at the right time can enhance workout effectiveness, recovery, and mental alertness.
Pre-Workout Nutrition for Energy Boost
A combination of carbohydrates and protein 30–60 minutes before exercise enhances endurance and prevents muscle breakdown. Research suggests that consuming 20–30 grams of protein with a moderate amount of carbohydrates pre-workout improves muscle performance and reduces fatigue (Phillips et al., 2017).
Post-Workout Recovery for Enhanced Performance
Post-exercise nutrition should focus on replenishing glycogen stores and promoting muscle recovery. Studies show that a 3:1 ratio of carbohydrates to protein optimises recovery and muscle repair (Jentjens et al., 2003). A meal containing lean protein, whole grains, and healthy fats supports long-term energy balance and performance.
Conclusion
Enhancing energy and performance through nutrition requires a well-balanced approach that includes complex carbohydrates, hydration with electrolytes, high-quality protein, healthy fats, essential micronutrients, and strategic meal timing. Backed by scientific research, these six nutrition hacks can help maximise endurance, cognitive function, and overall physical performance.
Key Takeaways
| Hack | Benefit |
|---|---|
| Prioritise complex carbohydrates | Sustained energy release and glycogen replenishment |
| Maintain optimal hydration | Prevents fatigue and muscle cramps |
| Increase protein intake | Supports muscle recovery and endurance |
| Use healthy fats | Provides long-lasting energy and cognitive benefits |
| Optimise micronutrient intake | Enhances energy production and reduces fatigue |
| Time meals strategically | Maximises performance and recovery |
References
- Beard, J. L., et al. (2001). ‘Iron deficiency anemia: impact on cognitive development in children and performance in adults’, The American Journal of Clinical Nutrition, 71(5), pp. 1218S-1222S.
- Burke, L. M., et al. (2011). ‘Carbohydrates for training and competition’, Journal of Sports Sciences, 29(sup1), pp. S17-S27.
- Cheuvront, S. N., et al. (2010). ‘Fluid and electrolyte needs for preparation and recovery from training and competition’, Journal of Sports Sciences, 28(sup1), pp. S29-S30.
- Hamilton, B. et al. (2010). ‘Vitamin D and skeletal muscle function’, Scandinavian Journal of Medicine & Science in Sports, 20(2), pp. 182-190.
- Jentjens, R. L., et al. (2003). ‘Carbohydrate-electrolyte feedings improve endurance capacity during intermittent high-intensity exercise’, Journal of Applied Physiology, 94(3), pp. 901-908.
- Kennedy, D. O. (2016). ‘B Vitamins and the brain: mechanisms, dose and efficacy’, Advances in Nutrition, 7(3), pp. 564-575.
- Morton, R. W., et al. (2018). ‘Protein intake to maximize muscle protein synthesis’, Journal of Applied Physiology, 124(6), pp. 1529-1540.
image sources
- Protein bar (1): Towfiqu barbhuiya on Unsplash
- avocado: Dream79
- Pnina Dahan Effort and Energy 2: Pnina Dahan | BOXROX Photo Comp 2022