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at Cycle Science Mitcha Favorite Ride: Old Healsville Rd Bike Setup: irrelevant Summary: There's a lot of nonsense mentioned about energy sources. The bottom line is for a quick hit of energy when you're low and trying to stave off glycogen depletion, you need simple carbs, and quickly. Serious cyclists burn a lot of energy (2hour+ rides
in aerobic heartrate zones). The GU packs have 100kcals and weigh bugger-all. They're easy to eat on the move, and apart from the disposal of the packs, are generally easy to handle (I prefer these to the powerbar powergel packs for ease of consumption). If fat was easy metabolised, it'd be the best source of energy, but it's not .. so scoff sugar .. when you're burning it off, you don't get an insulin induced low (that's just you using up the energy, duh).
Personally, I like the chocolate flavour too, but taste is a very personal thing. Strengths: 100kcal, light weight, easy to eat, tastes as good as you could want from concentrated carbohydrates. Weaknesses: Disposal of pack. The dispensers probably deal with this, but I haven't used one yet.
Expensive in Australia. Similar Products Used: Powerbars, powergel, muashi(sp?) bars. 
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