Too much fructose a hazard for heart health, from the Harvard Heart Letter
Liver cells are the only cells in the body that metabolize fructose. Surprisingly, fat is a key byproduct of the breakdown of fructose. Give the liver enough fructose, and tiny fat droplets begin to accumulate in the organ. This buildup is called nonalcoholic fatty liver disease. If it becomes severe enough, it can cause serious liver damage.
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