Fructose metabolism begins in the liver, where the sugar is converted into intermediates that can be used for energy. Unlike glucose, fructose does not stimulate insulin release and is processed through a different pathway. It is primarily converted into glyceraldehyde and dihydroxyacetone phosphate, which can then enter the glycolysis pathway to produce energy. Excessive fructose consumption can lead to various health issues, including fatty liver disease and increased fat production. This is because the liver can convert surplus fructose into triglycerides, which may contribute to obesity and metabolic disorders. Moderation in fructose intake is essential for maintaining metabolic health.