Remember to practice with gels before race day to avoid an upset stomach, which could impact your performance. I felt like this should have been good with a thin consistency, 30g carbs and no-need for water…however the taste was very synthetic, like cough mixture (and not in a good way). I really struggled to finish this gel – and have heard that the caffeinated version is even worse. Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it? Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. Delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue. Electrolytes. Some gels contain added electrolytes that can be beneficial during training and workouts. This can be a convenient way to get in carbs and electrolytes together. However, if you typically use another source of electrolytes, it may be best to choose a gel without them.

SiS Mixed GO Isotonic Energy Gels | 30 Pack | Science In Sport SiS Mixed GO Isotonic Energy Gels | 30 Pack | Science In Sport

Gels may also include caffeine, which has been shown to improve exercise performance, as well as branched-chain amino acids, which can help relieve muscle soreness ( 2, 3). Your training runs are not just to train your legs but also gives you the chance to train your gut and figure what fuel source works best for you,” Goblirsh says. “Race day is not the day to experiment with a new fuel.” Related: Fueling for an Ultramarathon – A Complete Guide to Race Day Nutrition Do SiS Gels Have Caffeine? Very similar to the original Huma gels, but with 240mg sodium per 41g, plus added electrolytes from sea salt and coconut water. These chia based gels are easy on the stomach so perfect for those that struggle with artificial options, however it’s worth noting that they are higher in fibre and protein so are slower to be absorbed than others. The brand claims this dual-carb formula increases carbohydrate absorption rate and minimises the risk of stomach trouble.With so many types of energy gels on the market, experts agree it’s best to experiment to find the one that works best for you and feels best in your stomach.

Energy Gels | SiS, Aptonia ® | Multipacks | Decathlon

Caffeine helps boost mental toughness, reduces perceived effort and decreases perceived levels of pain. For those that can tolerate caffeinated gels, these can be a major boost during your race. You want to take them 45 minutes to 60 minutes before you want to feel the effects as caffeine typically takes this time to reach full strength in the blood stream.Maurten offers both caffeinated and non-caffeinated options, with the caffeinated gels containing 100 mg of caffeine per serving.