I was skeptical about replacing other fuel sources with these because the ingredients are just so simple but they work better than any other gel I’ve tried. The carbohydrate ratio is spot-on for endurance training, and they digest incredibly easily. I’ve used them on multiple 2+ hour runs, taking three throughout, and had zero stomach issues (which is rare for me with most gels). The steady energy boost feels clean and natural, without the crash or gut discomfort. If you’re looking for a gel that actually fuels long runs without upsetting your stomach, this is it. I’ll never go back to anything else!