Hormonal
Six days of high-fructose overfeeding induces hepatic and adipose tissue insulin resistance and hypertriglyceridemia in healthy men, despite maintaining normal whole-body insulin sensitivity.
Eating large amounts of fructose (e.g., via sugary drinks or high-fructose foods) on top of your normal diet can rapidly impair how your liver and fat tissue respond to insulin, even if your overall blood sugar control looks normal. This happens quickly (within days) and may contribute to metabolic issues over time, regardless of your current weight or fitness level.
In conclusion, high-fructose diet induced dyslipidemia and hepatic and adipose tissue insulin resistance. Fish oil reversed dyslipidemia but not insulin resistance.
Why this rating
Small sample size (n=7), short duration (6 days), and lack of a starch/glucose control group limit generalizability and causal isolation of fructose vs. energy/carbohydrate load.
Source
Effect of Fructose Overfeeding and Fish Oil Administration on Hepatic De Novo Lipogenesis and Insulin Sensitivity in Healthy Men
David Faeh et al. · Diabetes · 2005
DOI 10.2337/diabetes.54.7.1907
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