This is good on long rides. Use every 45 minutes to sustain your level of energy.
I have tried them all and the GU Gels by far taste the best. They are also easily digested with no gastrointestinal issues.
GU is perfect for me. The chcoclate flavor is very good - my favorite - and the expresso is great since it has 2x the caffeine (which I like on race day). Very good prior to and during running, biking, or other workouts.
GU is great for quick energy, the espresso favor is a favorite that always goes down easily hot or cold!
My rides are normally 40 miles, 2 plus hours and about two thirds in I start to fade a bit so consume a GU along with a drink. Within a few minutes my energy level picks up and I finish my rides at ease without cramping. In the heat of summer I will consume two at 40 minute intervals. Have tried all flavors and prefer the peanut butter's true flavour and easily digestible. Last year I rode 6,200 miles on my Merlin with Shimano DI2 components and turned 80.
I use Gu before my early morning tempo runs as a quick source of fuel. I also use them on my long runs. I like the consisteny of Gu better than all other competitors and it seems to give me the best boost of energy.
Very tasty and easy on the gut, but too thick for waterless consumption and too light on salt for replenishment.
