Ha ha! Well, I have to agree with JoeFratena. Over many years of running many races at distances up to marathon, I've concluded it doesn't matter much what you eat/drink, as long as you drink some reasonable amount. For a marathon, taking in some fuel can help. Take it in early (up to about 18 miles) and it will help late. For half-marathon or less, fuel is more a psychological boost than anything. A gel can give you a brief (10 minutes maybe) sugar high, then you're back to "normal". Staying as hydrated as possible is more important, whatever you drink.
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