What product of pyruvate oxidation enters the Krebs cycle?

The product of pyruvate oxidation that enters the Krebs cycle is acetyl-CoA. Pyruvate, generated during glycolysis, is transported into the mitochondria, where it is decarboxylated by the enzyme pyruvate dehydrogenase to form acetyl-CoA. This acetyl-CoA then enters the Krebs cycle, where it combines with oxaloacetate to form citrate, initiating the cycle.