Fructose Metabolism

While glucose is distributed to muscles, brain, and organs for fuel, fructose is converted to fat that accumulates in the liver. Fructose is often described as 'alcohol without the buzz' because the downstream metabolic damage is nearly identical to that of alcohol. High-fructose foods can have a low glycemic index while still causing metabolic damage through the liver pathway. Fructose can only be processed in the liver, unlike glucose, which enters cells throughout the body. Large quantities of fructose overload the liver and drive fat production. Unlike glucose, fructose must be processed almost exclusively by the liver. The liver bears the full metabolic burden of fructose elimination using pathways similar to alcohol detoxification. Fructose behaves biochemically similarly to alcohol, using overlapping liver pathways and being preferentially directed toward fat synthesis rather than energy generation. Fructose is converted to fat by the liver, directly driving fatty liver accumulation. Uric acid activates NLRP3 inflammasomes — major pyrin-domain-mediated inflammatory signaling complexes — amplifying systemic inflammation in both mother and fetus. Refined starch can also produ…