In patients with ulcerative colitis and elevated inflammatory markers, a 17-month dietary intervention that removed gluten, dairy, and refined sugars and added specific supplements was associated...
Mechanism
Synthesis from 1 study
Removing gluten, dairy, and sugar stops harmful bacteria from growing and damaging the gut lining. Taking vitamin D, zinc, omega-3s, and glutathione repairs the lining, kills bad bacteria, and stops the immune system from attacking the gut. This heals ulcers, stops bleeding, and lets the digestive...
Most probable mechanism
Removing gluten, dairy, and sugar stops triggers that feed harmful bacteria and damage the gut lining. Supplements like vitamin D, zinc, omega-3s, and glutathione repair the gut barrier, kill off bad bacteria, calm immune cells, and heal ulcers. This stops bleeding, lets food be tolerated again, and returns bowel movements to normal.
Elimination of gluten, dairy, and refined sugars removes dietary antigens and fermentable substrates that promote overgrowth of pathogenic bacteria in the colon
Reduced bacterial load and endotoxin production decrease activation of innate immune cells in the intestinal lamina propria
Omega-3 fatty acids from krill oil are converted into specialized pro-resolving mediators that inhibit neutrophil recruitment and promote macrophage clearance of cellular debris
Vitamin D3 upregulates tight junction proteins and induces antimicrobial peptide production, while zinc stabilizes epithelial cell structure and prevents barrier disruption
Glutathione neutralizes reactive oxygen species generated by activated immune cells, preventing oxidative damage to epithelial cells and crypt structures
Restored epithelial barrier integrity and reduced inflammation enable mucosal healing, closure of ulcers, and re-establishment of normal mucus secretion and epithelial turnover
Resolution of mucosal inflammation and restoration of barrier function eliminate rectal bleeding, restore normal bowel habits, and enable tolerance of previously restricted foods
Less supported by current evidence, but not ruled out
Beneficial bacteria and lactoferrin outcompete harmful microbes for space and iron, while signaling immune cells to stop attacking the gut lining and start repairing it.
Probiotic strains colonize the colon and compete with pathogenic bacteria for adhesion sites and nutrients
Lactoferrin binds free iron, starving iron-dependent pathogens and reducing their population
Probiotics and lactoferrin stimulate epithelial cells to produce mucus and antimicrobial peptides
Dendritic cells shift from promoting inflammatory T-cell responses to inducing regulatory T cells that suppress neutrophil activity
Reduced Th17 signaling and IL-17 production decrease neutrophil infiltration and mucosal damage
Evidence from Studies
Supporting (1)
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