How to Fuel During a Half Marathon

In the last 2 miles of my first half marathon, I was hit with fatigue and nausea—common "bonking" symptoms. Even though I trained adequately and ate properly leading up to the big event, race day was a different story. That's when I realized the importance of fueling during a race.

Even with a substantial pre-run meal, my body was still lacking energy and key nutrients. Since then, I have perfected my fueling and finished strong. Based on my research and testing of different fueling methods, here are my top tips to fuel during a half marathon:

More: 4 Fully Loaded Meals to Carry You Through Race Day

1. Create a plan.

Practice your nutrition during training runs and avoid trying anything new on race day. Map out where the water stations will be and know what food and drinks you will need to carry.

2. Remember to hydrate.

Drink every 20 minutes. If you feel thirsty, you are past the point of dehydration.

More: How to Avoid Dehydration on Race Day

3. Avoid commercial gels.

Pre-packed gels and sport products can trigger stomach issues. Personally, I am unable to tolerate these forms of fuel. In some runners, these fuels are known to cause diarrhea and can result in digestive distress.

However, they are a quick and efficient energy source on race day if you can tolerate them. Make sure you try these products ahead of time so you know your tolerance level.

More: 6 Nutrition Tips to Avoid Stomach Pain

4. Explore alternative fuel methods.

Great alternative fuel sources are:

  • Fig Newtons
  • Swedish Fish
  • Gummy Candies
  • Pretzels
  • Protein Bars

Candy provides an immediate sugar rush and helps prevent a light-headed feeling. Protein bars are better for long-term fuel and can last much longer. Pretzels are great if you have a high sweat rate and are losing sodium.

More: 10 Natural Race Food Alternatives

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