Lactate Rivals Glucose As An Energy Carrier

A paper published in Nature Metabolism shows conclusively that lactate is produced normally in humans after ingestion of carbohydrates. Lactate rapidly enters the bloodstream, even before glucose shows up. Far from being a toxic byproduct to be eliminated during hard exercise, dietary glucose is converted so rapidly to lactate that it preempts or shares top billing with glucose as the two main carbon-energy carriers in the body.