By Claire Nakamura, RD • April 2026 • 7 min read • 412K views
Chronic inflammation is at the root of most persistent digestive issues. It damages the gut lining, disrupts nutrient absorption, feeds harmful bacteria, and sends inflammatory signals throughout the body — contributing to everything from bloating and brain fog to skin conditions and fatigue.
The good news: what you eat has a direct and measurable impact on gut inflammation levels. The right foods can reduce inflammatory markers within days. The wrong ones can undo weeks of progress in a single meal.
Rich in collagen, gelatin, and amino acids (particularly glycine and proline) that directly support gut lining repair. The gelatin in bone broth helps seal micro-permeabilities in the intestinal wall. Aim for 1-2 cups daily during active gut repair.
Salmon, sardines, mackerel, and anchovies provide EPA and DHA omega-3 fatty acids that reduce intestinal inflammation and support mucosal healing. Studies show that omega-3 supplementation improves gut barrier function and reduces inflammatory markers. Aim for 2-3 servings per week.
A potent anti-inflammatory and prokinetic that supports gut motility and reduces nausea. Ginger compounds (gingerols and shogaols) inhibit inflammatory pathways in the gut. Fresh ginger in meals or as tea is effective at 500mg-1g daily.
Curcumin, the active compound in turmeric, has been extensively studied for its anti-inflammatory effects on the GI tract. Best absorbed with black pepper (piperine) and fat. Consider supplementation if dietary intake is insufficient.
Spinach, kale, and Swiss chard provide folate, fiber, and phytonutrients that support beneficial gut bacteria growth. The fiber acts as a prebiotic, feeding the good bacteria your gut needs to heal.
Excess sugar feeds harmful gut bacteria and yeast (particularly Candida), promotes dysbiosis, and directly increases intestinal permeability. Reducing added sugar intake is often the single highest-impact dietary change for gut health.
Soybean, corn, canola, and sunflower oils are high in omega-6 fatty acids, which promote inflammation when consumed in excess relative to omega-3s. The standard American diet has a dramatically skewed omega-6 to omega-3 ratio.
Even moderate alcohol consumption increases intestinal permeability and disrupts the gut microbiome. During active gut repair, eliminating alcohol entirely produces the fastest results.
Research shows that artificial sweeteners including aspartame, sucralose, and saccharin can alter gut microbiome composition and may increase intestinal inflammation in some individuals.