The Impact of Fructose Consumption on Human Health: Effects on Obesity, Hyperglycemia, Diabetes, Uric Acid, and Oxidative Stress With a Focus on the Liver.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing mechanistic pathways and associations without systematic search methodology.
PubMed 39355469 · doi:10.7759/cureus.70095
What was done
This narrative review synthesized recent literature on the health impacts of excessive fructose consumption, focusing on hepatic metabolic pathways and their roles in obesity, insulin resistance, type 2 diabetes, hyperuricemia, and oxidative stress.
What was found
No quantitative data, effect sizes, or participant numbers were reported in the abstract. Mechanistically, the authors state that hepatic fructose metabolism bypasses insulin regulation to stimulate de novo lipogenesis (contributing to non-alcoholic fatty liver disease and cardiovascular risk), induces ATP depletion leading to purine degradation and elevated uric acid, and stimulates reactive oxygen species production that promotes inflammation.
Why it matters
It outlines the distinct biochemical mechanisms by which high dietary fructose intake may drive hepatic fat accumulation, hyperuricemia, and systemic metabolic disease.
Limits
The abstract describes a narrative overview rather than a systematic review or meta-analysis. No sample sizes, dose-response relationships, or quantitative risk estimates are provided, and potential confounding dietary factors are not evaluated.
Cited by
- supports Fructose metabolizes into uric acid, and uric acid plays a pivotal role in insulin resistance, inflammation, and non-alcoholic fatty liver disease.
- supports Fructose is phosphorylated to fructose-1-phosphate in the liver, depleting ATP to ADP and AMP, which is subsequently converted into uric acid.