Getting Started with Hammer Nutrition
The 5 Golden Rules of Endurance Fueling
Adapted from the original work by Steve Born
Whether you're training for a marathon, century ride, Ironman or ultra-distance event, your nutrition strategy can have just as much impact on performance as your training.
After nearly 40 years of working with endurance athletes, Hammer Nutrition has developed five simple fueling principles that help deliver consistent energy, better digestion and faster recovery.
These guidelines are built around one simple philosophy: work with your body, not against it.
1. Drink the Right Amount – Don't Overhydrate
Hydration is essential, but drinking more is not always better.
One of the biggest mistakes endurance athletes make is trying to replace every drop of sweat they lose. Your body simply cannot absorb fluids at the same rate that it loses them during prolonged exercise.
For most athletes, drinking 600-750 ml of fluid per hour is sufficient.
As a general guide:
- Smaller athletes or those exercising in cool weather may only require 450-530 ml per hour.
- Larger athletes or those training in hot and humid conditions may benefit from 750-830 ml per hour.
- In extreme conditions, fluid intake may occasionally approach 880 ml per hour, but regularly drinking more than this significantly increases the risk of stomach discomfort, bloating and potentially serious hydration problems.
The best approach is to drink small amounts consistently throughout your workout rather than consuming large volumes infrequently.
2. Eat Only the Calories Your Body Can Use
Many athletes believe they should replace every calorie they burn during exercise.
In reality, your digestive system cannot process calories nearly as quickly as your muscles use them.
During endurance exercise, your body relies heavily on stored fat to make up the difference between calories burned and calories consumed.
Hammer Nutrition's long-established "Less Is Best" philosophy recommends supplying your body with moderate amounts of fuel that it can comfortably absorb.
For most athletes, an intake of 120-180 calories per hour provides excellent results.
As a starting point:
- Smaller athletes: 120-140 calories per hour.
- Average athletes: 140-160 calories per hour.
- Larger athletes (approximately 86 kg and above): 160-180 calories per hour.
Consuming significantly more than your body can absorb often leads to bloating, nausea and gastric distress—one of the most common reasons endurance athletes struggle during long events.
Products such as Hammer Gel, HEED and Perpetuem provide sustained energy using complex carbohydrates that are easier to digest than high-sugar alternatives.
3. Choose Complex Carbohydrates Instead of Simple Sugars
Not all carbohydrates are created equal.
Many traditional sports nutrition products rely heavily on simple sugars such as glucose, fructose and sucrose. While these sugars provide quick energy, they also produce rapid spikes and crashes in blood sugar and have limited absorption rates during prolonged exercise.
Hammer Nutrition takes a different approach.
Products such as Hammer Gel, HEED and Perpetuem are based primarily on complex carbohydrates, which provide:
- Steady energy release.
- Improved digestion.
- Higher absorption rates.
- Reduced risk of stomach upset.
- More consistent performance during long endurance events.
For exercise lasting longer than two to three hours, adding a small amount of protein becomes increasingly important.
Perpetuem combines complex carbohydrates with non-GMO soy protein and healthy fats to provide sustained energy while helping reduce muscle breakdown during prolonged exercise.
This balanced approach helps athletes maintain energy levels without relying on excessive sugar intake.
4. Replace More Than Just Sodium
Electrolyte replacement involves much more than simply taking salt tablets.
While sodium is an important electrolyte, your body also depends on:
- Calcium
- Magnesium
- Potassium
- Chloride
These minerals work together to support muscle contractions, nerve signalling, hydration, cardiovascular function and energy production.
Because electrolyte losses vary enormously between individuals, no single sports drink or electrolyte formula can perfectly match every athlete's requirements.
Factors such as body size, fitness, weather conditions, humidity, acclimatisation and sweat rate all influence electrolyte needs.
Hammer Nutrition's Endurolytes® range provides balanced electrolyte support that allows athletes to adjust intake according to conditions rather than relying on excessive sodium alone.
As a general guideline, one Endurolytes Extreme capsule per hour provides an excellent starting point for many athletes. During particularly hot races or for athletes with higher electrolyte requirements, two to three capsules per hour may be more appropriate.
The key is to experiment during training until you discover what works best for your own body.
5. Prioritise Recovery Within the First Hour
Your recovery begins the moment you stop exercising.
The first 30 to 60 minutes after training are often referred to as the recovery window because your muscles are especially receptive to replacing glycogen and beginning the repair process.
Failing to eat during this period delays recovery and reduces your body's ability to adapt to training.
A combination of carbohydrates and high-quality protein helps:
- Restore muscle glycogen.
- Repair damaged muscle tissue.
- Reduce muscle soreness.
- Support immune function.
- Prepare your body for the next training session.
Recoverite® from Hammer Nutrition UK has been specifically developed for endurance athletes, combining complex carbohydrates with premium grass-fed whey protein isolate, 3,000 mg of L-Glutamine and a full-spectrum electrolyte profile.
Taking Recoverite as soon as possible after exercise helps maximise recovery so you are ready to perform again sooner.
Putting the Five Rules Together
Successful endurance nutrition doesn't have to be complicated.
The five principles below form the foundation of Hammer Nutrition's fueling philosophy:
- Drink enough to stay hydrated, but avoid overdrinking.
- Consume only the calories your body can comfortably absorb.
- Choose complex carbohydrates over simple sugars.
- Replace a balanced range of electrolytes, not just sodium.
- Begin recovery nutrition within 30-60 minutes of finishing exercise.
Following these guidelines allows your digestive system to work efficiently while supplying your muscles with the fuel they need to perform hour after hour.
Summary
The best endurance athletes understand that successful fueling is not about consuming as much as possible—it's about consuming the right amount at the right time.
Hammer Nutrition's Less Is Best philosophy has helped endurance athletes around the world achieve better performances for nearly four decades by working with the body's natural physiology rather than overwhelming it.
Whether you're preparing for a sportive, marathon, ultra-run or Ironman, following these five simple rules can help you enjoy steadier energy, improved hydration, fewer digestive problems and faster recovery.
To build your complete fueling strategy, explore the full Hammer Nutrition UK range, including HEED, Hammer Gel, Perpetuem, Endurolytes, Endurolytes Extreme, Endurolytes Fizz and Recoverite.
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