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Before Run

Start with a full tank.

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Before Run FAQs

What should you eat before a run?

Choose familiar food that supplies carbohydrate without leaving you uncomfortably full. Your portion and timing should reflect the run length, intensity and how quickly you digest food. ... A portable breakfast, energy cake or lighter carbohydrate snack can suit an early session when a normal meal is impractical. Decathlon breakfast bars combine carbohydrate with protein, vitamins and minerals, with two bars forming the suggested breakfast portion. You can compare bars, cakes and other running energy intakes according to texture and serving size. Pro tip: record what you ate, when you ate it and how your stomach felt during the run so you can repeat combinations that work.


How long before running should you eat?

A larger meal generally needs more digestion time than a small snack or drink. Decathlon recommends consuming its complete breakfast-bar portion around 90 minutes before an endurance session, although your own tolerance may differ. Foods high in fat or fibre can remain in the stomach longer, so avoid introducing a heavy or unfamiliar meal close to your start time. A lighter carbohydrate drink may feel easier when your appetite is low, but it still needs testing in training. Check the serving instructions for running energy drinks rather than making the mixture stronger, as excessive concentration may cause digestive discomfort.


Do you need energy bars or drinks before every run?

Short, easy sessions often require no specialist nutrition when you have eaten normally and begin adequately hydrated. Energy products become more useful before longer endurance training, demanding races or early starts when preparing a normal meal is difficult. Match the amount to the work ahead instead of eating extra simply because you plan to run. A pre-run product also serves a different purpose from fuel consumed while exercising. Longer outings may require a separate plan for during-run nutrition, based on duration, effort and access to water. Test flavours, textures and packaging before race day so eating does not interrupt your rhythm.


When should you use maltodextrin before a long event?

Maltodextrin is most relevant when preparing for a prolonged endurance event rather than a routine short run. Decathlon positions its low-sweetness maltodextrin drink for the three days before exercise lasting more than three hours, helping increase carbohydrate availability ahead of the start. Follow the product's measured preparation instructions instead of adding extra powder. The drink should complement balanced meals rather than replace them. Once mixed, keep it as directed and consume it within the stated period. Your preparation should also include a plan for hydration during the event and suitable after-run nutrition once you finish. Trial the full approach before an important race.


How should you prepare for an early-morning run?

Prepare your running nutrition & clothing the night before so you can start without rushing. Choose a breakfast you have already tolerated, then allow enough time for eating, digestion and a gradual warm-up. If preparing a full breakfast is inconvenient, an energy cake or cream can provide a practical alternative, while individually wrapped bars are easy to carry for later. Drink according to your thirst rather than consuming a large volume of fluid immediately before you leave. Pro tip: start the first few minutes at an easy pace, especially if your muscles and joints still feel stiff after waking.