Energy Gels for Running: How They Work and When You Should Take Them? Hit the wall. Bonking. Cramping. Pure exhaustion. The marathon brings many of those experiences to each and every one of us, but we are told that if we use energy gels, running will be much less miserable, and we will feel better in those final few miles of a race. Is there a best energy gel for running? The answer is No, we are all built different and have taste and body make up which makes the one size fits approach absurd. So it is then about...