Figure 1From: Sugar and fat – that's where it's at: metabolic changes in tumorsGlycolysis overview. Glycolysis involves the metabolism of glucose to two molecules of pyruvate via nine other intermediates by the actions of nine enzymes (depicted in red). CoA, coenzyme A; NAD, nicotinamide adenine dinucleotide; NADH, nicotinamide adenine dinucleotide, reduced.Back to article page