Research
Macro partitioning
Fructose consumption promotes hepatic de novo lipogenesis (DNL) and NAFLD development through both substrate provision and independent upregulation of lipogenic transcription factors (SREBP1c and ChREBP), even in the absence of insulin signaling.
High amounts of fructose (especially from added sugars or juices) directly stimulate your liver to make new fat, even if you aren't insulin resistant. This process is unique to fructose compared to glucose.
GoodSupportsHIGH confidence
Fructose also increases SREBP1c expression and activity independent of insulin. In liver specific insulin receptor null mice, fructose stimulates SREBP1c expression, nuclear localization, and the expression of target lipogenic enzymes... dietary fructose more robustly induces DNL in patients with fatty liver disease.
Why this rating
Supported by mechanistic studies in mice and human dietary studies cited in the review.
Source
Hepatic lipid accumulation: cause and consequence of dysregulated glucoregulatory hormones
Caroline E. Geisler et al. · Journal of Endocrinology · 2017
DOI 10.1530/joe-16-0513
narrative_reviewCited 194×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Hepatic lipid accumulation acts as a primary driver of systemic metabolic dysfunction by serving as ligands for PPARs, which upregulate gluconeogenic, lipogenic, and ketogenic genes, thereby promoting hyperglycemia and hyperlipidemia.Good
- The typical hormonal environment in fatty liver disease—hyperinsulinemia, hyperglucagonemia, hypercortisolemia, and growth hormone deficiency—synergistically encourages further hepatic steatosis by dysregulating adipose lipolysis and hepatic lipid handling.Good
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