I doubt it. That boost during your ride might also have something to do with caffeine. I drink a beverage with a little sugar and whey protein in it before and after the gym. I don't think it does much if anything for that one workout, but I think it helps over time. I don't think it's a good idea to go to the gym hungry unless you're trying to cut. It certainly does help to consume carbs on the bike on any ride of over maybe 30 miles. That said, at any coffee stop I drink mine black. It's cheaper.
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