High-Fat Diet Alters Gut Stem Cells in Mice
A mouse study published in Stem Cell Reports links a high-fat diet to lasting changes in intestinal stem cells and early tumour growth.
Updated on Nov. 12, 2026 in Nutrition
Researchers reported in Stem Cell Reports that a high-fat diet changed intestinal stem cells in mice. Some of these changes persisted after the mice returned to a control diet.
Why it matters
The findings suggest that dietary effects on intestinal stem cells may outlast the diet itself, which could bear on how diet relates to gut disease risk. The results come from mice, so their relevance to human health has not been established.
The study is based on experimental mice, with intestinal stem cells at the base of the crypts of Lieberkühn examined for changes in chromatin accessibility. Whether comparable changes occur in human intestinal stem cells remains unresolved.
The details
Researchers examined the small intestine of mice fed a Western-style high-fat diet, finding that intestinal stem cells retained some changes after the mice returned to a control diet. In mice with the Apc gene switched off in gut stem cells, the diet exposure was associated with increased growth of experimentally triggered early-stage tumours.
Timeline
Thursday 12 November 2026: study published in Stem Cell Reports
Health Landscape
The study extends Apc-based mouse models of intestinal tumour formation by linking prior dietary exposure to lasting changes in gut stem cells. It adds to research on how nutrition may shape long-term intestinal health rather than only immediate effects.
The findings suggest that eating patterns may have effects on the gut that persist after a diet changes. Readers concerned about intestinal health may consider the research as one input when thinking about long-term dietary habits, though the study was conducted in mice.
The takeaway
The study indicates that dietary exposure can leave lasting marks on intestinal stem cells in mice. Whether these findings apply to human gut health will require further research.
Further reading
Explore more on Nutrition to see how diet shapes long-term health.
More information
Read the original Stem Cell Reports study on diet and intestinal stem cells.
