Winter might slow the world down, but for endurance athletes, it can be one of the most valuable times of the year.
Whether you are building your base, keeping your routine ticking over, or laying the groundwork for spring and summer events, how you fuel now matters. Shorter sessions, colder starts, darker mornings, and unpredictable weather can all make training feel harder than expected. The right nutrition helps you stay consistent, energised, and ready for whatever the forecast is doing.
Timing Nutrition for Cold-Weather Training
| When | What to Use | Winter Training Tip |
|---|---|---|
| Pre-workout | GU Energy Waffle or Energy Gel | Keep fuel somewhere warm so it is easy to eat before you head out |
| During workout | GU Energy Gels or Energy Chews every 20–30 minutes | Store fuel close to your body in a vest or pocket so it stays soft and accessible |
| Hydration | GU Hydration Tabs | Sip before or during training to stay on top of fluid and electrolytes |
Fuelling Still Counts
When training volume drops, it can be easy to assume you do not need as much fuel. But winter training still places real demands on your body.
Cold weather, wet gear, wind, hills and heavier layers can all increase the effort required, even when your pace is slower or your heart rate is lower. If you are running, riding, hiking or training consistently through winter, your body still needs carbohydrates to keep moving well.
Winter tip: Keep a few GU Energy Gels or Chews in an inner pocket, vest or waistband. Your body heat helps keep them soft, easy to open and ready when you need them.
Hydration Matters, Even When It Is Cold
In cooler weather, it is easy to forget about hydration. You may not feel as sweaty, but you are still losing fluid through breathing, perspiration and the layers you are training in.
That slow fluid loss can add up, especially on longer trail runs, rides, hikes or indoor trainer sessions. It can leave you feeling sluggish, flat or more prone to cramping later in the day.
Winter tip: Start your session hydrated. GU Hydration Tabs are an easy way to add electrolytes to your bottle, and in cold weather, you can even mix them with warmer water to make early starts a little more comfortable.
Choose Fuel That Works in Cold Weather
Winter training is not the time for fuel that is hard to chew, awkward to carry or difficult to get down when your hands are cold.
GU Energy Gels, Energy Chews and Energy Waffles are easy to pack, easy to portion and simple to use across different training sessions. They work just as well for a dark morning run as they do for a long ride, a gym-to-run combo, or a steady weekend mission in the hills.
Winter tip: GU Energy Waffles are a great pre-training or mid-session option. Keep one in your bag, car or gear drawer so you have an easy fuel option ready before you head out.
Make Consistency the Goal
Winter training is not about perfection. There will be rain, wind, cold mornings, muddy trails and days when motivation is low.
The goal is to keep showing up. Fuelling well helps make that easier.
You do not need to overthink it. Start sessions with enough energy on board, carry fuel for longer efforts, and keep your hydration ticking over. Small habits now can make a big difference when your training builds later in the season.
Winter tip: Set up a simple fuel station near your training gear. Keep it stocked with GU Energy Gels, Chews, Waffles and Hydration Tabs so you can grab what you need and get out the door.
Set the Tone for Your Season
No matter what winter training looks like for you - trail runs, road rides, indoor base sessions, gym work, hikes or early morning laps before work - your nutrition helps you stay strong and consistent.
Winter is not just something to get through. It is where endurance is built.
Fuel with purpose, plan for the conditions, and give your body what it needs to keep moving well all season long.