Again, the research is pretty straightforward: low-glycemic carbohydrates are best for prolonged (2 or more hours) endurance exercise, and high-glycemic carbohydrates are best for shorter, more intense workouts.9 In terms of what to eat, I don’t like pre-workout carbohydrate supplements. They’re little more than overhyped, overpriced tubs of simple sugars like dextrose and maltodextrin. Don’t buy into the marketing BS. There’s nothing inherently special about these types of molecules other than that they’re easy to digest. Instead, I much prefer getting my pre-workout carbohydrates from food.
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