The Study
Adiponectin Resistance and Proinflammatory Changes in the Visceral Adipose Tissue Induced by Fructose Consumption via Ketohexokinase-Dependent Pathway
This study showed that when mice eat a lot of fructose, their belly fat gets sick — but only if they have a specific enzyme called KHK. If you remove that enzyme, the mice stay healthy even eating the same sugary food. So it shows a link inside mice, not in people.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Fructose is broken down by a special enzyme called KHK, and when it is, it tricks the body into storing fat around the belly and causing inflammation.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 514 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes—this suggests that blocking KHK could prevent belly fat and diabetes caused by sugary drinks, even if you still eat sugar.
- 2Mice fed fructose got fat and sick—but mice without the KHK enzyme stayed lean and healthy, even eating the same amount of fructose.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Diabetes
Year
2014
Authors
George Marek, V. Pannu, P. Shanmugham, Brianna Pancione, Dominic Mascia, S. Crosson, Takuji Ishimoto, Y. Sautin
Related Content
Claims (6)
In male C57BL/6 mice, consuming high amounts of fructose causes endoplasmic reticulum stress in visceral fat tissue, and this stress does not occur when the enzyme ketohexokinase is absent, indicating that fructose metabolism through ketohexokinase activates cellular stress pathways in fat tissue.
In male C57BL/6 mice, a high-fructose diet causes visceral fat accumulation, insulin resistance, inflammation in fat tissue, immune cell infiltration into fat, endoplasmic reticulum stress, and reduced signaling by high-molecular-weight adiponectin; these effects do not occur when the mice lack the ketohexokinase enzyme.
In male C57BL/6 mice, removing the ketohexokinase gene blocks the decrease in high-molecular-weight adiponectin and its signaling caused by fructose, showing that fructose metabolism through ketohexokinase is required for adiponectin resistance in visceral fat.
In male C57BL/6 mice, consuming high amounts of fructose causes immune cells to accumulate in fat tissue around internal organs and triggers the release of inflammatory signaling molecules; these changes do not occur when the enzyme ketohexokinase is absent.
In male C57BL/6 mice, removing the ketohexokinase enzyme stops fructose from causing fat buildup in the abdomen, even when the same amount of fructose is consumed.
When people gain the same amount of weight, consuming fructose results in more fat accumulating around internal organs than consuming glucose.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.