Cure8 research brief
This study suggests that an intermittent fasting pattern (alternate-day fasting) increased intestinal injury, reduced immune cells, and caused anemia in a mouse model of acute colitis, implying such diets might be risky during active IBD.
Patients with active disease or who are malnourished could be most affected, so the finding is relevant to decisions about fasting or restrictive diets during flares.
Patients with active IBD, people considering intermittent fasting while having IBD, gastroenterologists, IBD dietitians, and researchers studying diet-IBD interactions.
This mouse study tested alternate-day fasting (ADF) during a 35-day regimen with acute colitis induced by dextran sulfate sodium (DSS).
The authors report that ADF worsened colitis outcomes in mice: greater weight loss, lower survival, impaired colonic mucus layer integrity, reduced certain innate immune cells in bone marrow and lymphocytes in spleen, and evidence of anemia.
The paper concludes that strict ADF suppressed tissue repair and systemic immune function and promoted anemia in this acute DSS-colitis model. The authors advise caution about applying intermittent fasting during active IBD. This is preclinical (mouse) research and does not directly prove the same effects occur in people with IBD.
It does, however, raise biologically plausible concerns that severe calorie-restriction regimens might be harmful during active intestinal injury. If you are considering intermittent fasting while you have active IBD, discuss it with your gastroenterologist or dietitian; this study alone cannot settle safety in humans.
This report is an animal (mouse) study using DSS to induce acute colitis; results may not translate directly to humans or to other fasting protocols. The article provides an abstract-level summary; the study design, timing, and severity of disease in mice are important context when interpreting applicability to people.
Review the original publication for the complete reporting, methods, and context.
This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.
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