What is the end product of glycolysis?

The end products of glycolysis are two molecules of pyruvate, two molecules of NADH, and a net gain of two ATP molecules. These products serve as intermediates for other metabolic processes, such as the citric acid cycle (in the presence of oxygen) or fermentation (under anaerobic conditions). Pyruvate is the key product that determines the subsequent metabolic pathway, depending on oxygen availability.