You've probably noticed it already. There is a wide range of gels on the market with not only different brands or flavors but also different types. Do you know when it is best to take which type of gel during your exercise? After all, the right sports nutrition can make or break your training or competition. During exercise, the energy level in your body drops because the sugar level in the blood decreases. As a result, you have less energy and your performance decreases. Replenishing your energy level in time is important to counter the well-known man with the hammer.