Got the half marathon starter pack. Got me through the Lisbon superhalf marathon with PB. No issue with digestion and would recommend. Will be getting more for the London Marathon.
Half Marathon Race & Training Pack
A complete nutrition strategy to take the guesswork out of training and race day.
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All Science in Sport products are certified under the strict guidelines of the INFORMED Sport Programme. To achieve this, an independent organization (LGC Assure) with an accredited, independent laboratory that’s been testing for banned substances for over 20 years, rigorously tests our products to detect all compounds on the World Anti-doping Association Banned Substances list.
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Providing assurance for athletes, All INFORMED Sport certified Science in Sport products are rigorously tested, screening for all compounds on the WADA Banned Substances list.
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3. Batch Tests
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HALF MARATHON NUTRITION PLANS
Practising your fuelling strategy before race day is vital to your training plan. The SiS Half Marathon Bundle removes the confusion around sports nutrition, makes race day a breeze, and keeps your energy and hydration levels balanced.
BETA FUEL ENERGY GEL
A dual-source energy gel perfect for endurance runners, with 40g of carbs
HYDRO+
Electrolytes in a sitck; mix with water to replace nutrients lost through sweat
BETA FUEL ENERGY CHEW
45g dual-source carbohydrate in a chewable format. A perfect alternative to gels
BETA FUEL ENERGY GEL + NOOTROPICS
Delivers energy and fights mental fatigue for endurance athletes
- Vitamin B1 & B2 contribute to carbohydrate conversion
- Vitamin B6 aids protein metabolism.
HALF MARATHON NUTRITION STRATEGY
EXPECTED FINISH TIME ~2 HOURS
Start 
BETA FUEL CHEW & 150ML WATER 60 mins 
BETA FUEL GEL & 150ML WATER 100 mins End
30 mins
BETA FUEL + NOOTROPICS GEL & 150ML WATER 
80 mins BETA FUEL GEL & 150ML WATER
HOW TO PREP FOR A HALF-MARATHON?
Your training plan goes beyond just putting in the miles. You need to train your body, your mind and your stomach to perform at your best at the event. Start your training 10 to 14 weeks out at a minimum, using your longer runs to find the fuelling strategy that works for you. Train with your fuel, so you find the right combination that helps your stomach and pace before the day.
The Half-Marathon Race & Training Pack provides different options for you to try out before committing to a finalised strategy. Don’t change anything on race day, use only what you have practised with.
WHY IS FUEL IMPORTANT IN A HALF MARATHON?
Getting your fuelling right helps you finish with confidence, rather than just hitting the wall. Using nutrition effectively ensures you enjoy your race and recover faster. Carbohydrates are the main source of energy during endurance exercise, and your reserves need to be continuously topped up to maintain your intensity.
Finish time <2 hours, aim to consume 60g of carbohydrate per hour. Finish time >2 hours, aim to consume 80-120g of carbohydrate per hour. This can be achieved through single-source formulations.
TRAINING WITH NUTRITION
Alongside training, nutrition plays a key role in optimising performance during half marathon training by fuelling your body for intense workouts, enhancing recovery and promoting training adaptations. Nutrition remains one of the biggest things that half marathoners get wrong, drastically reducing the progress made during their training programme.
6. Vitamin C contributes to normal energy-yielding metabolism.
7. Vitamin B6 & B12 contribute to the reduction of tiredness and fatigue.
EASY RUNS
Help build aerobic base, playing an important role in your ability to run long distances
EASY RUNS
Easy Runs help you build aerobic base, which plays an important role in your ability to run long distances. These are usually completed twice per week, and you should run between 8-10 km as part of these sessions.
- Pre-run, you should aim to consume a meal containing 1.5 g/kg body mass of slowly digestible carbohydrate around 2.5-3 hours in advance.
- Consume ~20 g of protein as part of the pre-training meal.
- Given the reduced intensity and duration of these runs (~1h), there is no additional need for carbohydrate consumption during the run.
- Focus on consuming 500-600 ml of water per hour and you can include electrolytes to support hydration.
- Post-run, it is important that you start consuming a mix of carbohydrate and protein early to re-store your energy stores (glycogen) and repair your muscle.
PROGRESSION RUNS
Teaching you how to push harder once fatigue kicks in
PROGRESSION RUNS
Progression Runs are crucial in teaching you how to push harder once fatigue kicks in, simulating how you are going to feel in the later stages of the race.
- Pre-run, you should aim to consume a meal containing 2 g/kg body mass of easily digestible carbohydrate around 3 hours in advance.
- Consume ~20 g of protein as part of the pre-training meal.
- Given the increased intensity and duration of these runs (~1h), you should aim to consume 30-60 g of carbohydrate per hour during the run.
- Focus on consuming 500-600 ml of water per hour.
- Post-run, it is important that you start consuming a mix of carbohydrate and protein early to re-store your energy stores (glycogen) and repair your muscle.
SPEED SESSIONS
Crucial for improving a range of physiological characteristics
SPEED SESSIONS
Speed Runs are crucial for improving a range of physiological characteristics, including your speed, power, strength and running economy.
- Pre-run, you should aim to consume a meal containing 2 g/kg body mass of easily digestible carbohydrate around 3 hours in advance.
- Consume ~20 g of protein as part of the pre-training meal.
- Given the high intensity of these runs, you should aim to consume 60 g of carbohydrate per hour.
- Focus on consuming 500-600 ml of water per hour.
- Post-run, it is important that you start consuming a mix of carbohydrate and protein early to re-store your energy stores (glycogen) and repair your muscle.
LONG RUNS
Important for building your endurance capacity
LONG RUNS
Long Runs are crucial for building your endurance capacity and preparing you physically and mentally for the race. You will usually run between 13-23 km at a low pace during these session.
CARBOHYDRATE LOADING
You should start to fuel these runs the day before by implementing a carbohydrate loading protocol. It is recommended to consume a total daily carbohydrate intake of 6-8 g/kg body mass on this day to maximise your glycogen store.
LONG RUN DAY
- On the day of the Long Run, you should aim to consume a meal containing 2-3 g/kg body mass of easily digestible carbohydrate around 3 hours in advance, it is important to include fructose-rich foods or drinks (such as Beta Fuel) in your pre-run meal.
- You should also consume ~20 g of protein as part of the pre-training meal.
- If this run lasts less than 120 mins, you should aim to consume 60 g of single-source carbohydrate per hour. However, for the Long Runs that last ≥120 mins, you should aim to consume between 60-90 g per hour of dual-source carbohydrate.
- You should also focus on consuming 500-600 ml of water per hour.
- Post-run, it is important that you consume a large serving of carbohydrate (1 g/kg body weight) and protein (20-30 g) early to re-store your energy stores (glycogen) and repair your muscle.
Reviews
Reviews
by Christopher Drew
09/03/2026
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