I use Shaklee's Performance - its a maximum endurance sports drink. On long rides, I put extra powder in a baggie and can refill my water bottles with it. It comes in two flavors - Orange, my personal favorite and lime. I would try different products and drinks on shorter rides. I find that all that fancy stuff upsets my stomach. I use shot bloks and Luna moons, but for carbs, protein and salt - I always carry a package of peanut butter crackers. I have been riding for 30 years and do about 5 centuries a year and I always carry my crackers. When I have friends that need something extra to eat - it always helps them. Nothing fancy - just something that works. I have another friend who carries small boiled potatoes with her. Find what works for your body and stick with it! Bekki