You have chronic inflammation or pain. How might your food choices be contributing?
The Short Answer
Certain foods and habits are part of a pro-inflammatory dietary pattern: refined carbohydrates, added sugars, trans fats, ultra-processed foods, and excessive alcohol.[1],[2] Other foods anchor an anti-inflammatory pattern: fatty fish, leafy greens, berries, nuts, olive oil.[1],[3] Chronic inflammation is linked to many conditions: metabolic dysfunction, type 2 diabetes, and cardiovascular disease.[1] If you have persistent inflammation, your diet is one lever you can pull. It may not be the only cause, but it’s worth examining.[1]
Something to Sit With
Inflammation is your immune system’s response: useful acutely, harmful chronically. Something is triggering it. Maybe it’s stress, maybe it’s sleep, maybe it’s infection. But maybe it’s what you eat every day.
What might your diet be saying to your immune system?
Learn More
What chronic inflammation is. Acute inflammation is your body’s healing response to injury or infection: redness, swelling, heat. It’s protective and resolves once the threat is gone.
Chronic inflammation is different. It’s low-grade and persistent (modest but lasting elevations in markers like CRP, IL-6, and TNF-α), and often has no obvious trigger. It’s linked to a range of conditions: cardiovascular disease, type 2 diabetes, metabolic syndrome, fatty liver disease, joint pain, and possibly obesity itself.[1]
Diet is one of the modifiable factors that influence chronic inflammation.[1]
Foods that promote inflammation.
Refined, high-glycemic carbohydrates. White bread, pastries, crackers. They’re associated with higher inflammatory markers, while lower-glycemic foods tend to be protective.[1]
Added sugars. Especially fructose in excess. A diet high in sugar is part of the pro-inflammatory pattern, with effects that extend to the gut and, via fat accumulation, the liver.[1],[4]
A low omega-3 balance. Diets heavy in omega-6 oils (soybean, corn, sunflower, safflower) and low in omega-3s lack the long-chain omega-3s (EPA and DHA) that the body uses to actively resolve inflammation.[1]
Trans fats. Partially hydrogenated oils. Now largely banned, but still present in some processed foods, and they promote systemic inflammation.[5]
Processed and ultra-processed foods. A commentary attributes to experimental studies the claim that such foods shape a gut environment favoring inflammatory disease; the review behind it frames that as an argument, built largely on animal findings, with human data still scarce.[6] What another review does support is the gut-inflammation axis itself: high-fat diets can raise intestinal permeability, letting bacterial LPS into circulation.[1]
Saturated fat, including from red and processed meat. Saturated fat is part of the dietary pattern linked to chronic inflammation, with the review naming NLRP3 inflammasome activation and IL-1β signaling as the sensor of saturated-fat metabolic stress (evidence it describes as not always consistent, and much of it in vitro or cross-sectional); red and processed meat are associated with higher inflammatory markers in some studies, though the effect may depend on overall diet quality.[1]
Excessive alcohol. Chronic or heavy drinking weakens the gut barrier, letting bacterial byproducts (LPS) leak into the bloodstream, where they activate the immune system and drive low-grade systemic inflammation. The mechanism is dose-related: this is about excess, not the occasional drink.[2]
Foods that reduce inflammation.
Fatty fish. Salmon, mackerel, sardines, herring. Rich in the long-chain omega-3s (EPA and DHA) that serve as substrates for the pro-resolving mediators (resolvins, protectins, maresins) that actively resolve inflammation.[1]
Leafy greens. Spinach, kale, collards. Part of the fruit-and-vegetable-rich pattern that consistently lowers inflammatory markers in intervention trials.[1]
Berries. Blueberries, strawberries, raspberries. Flavonoid consumers show CRP roughly 25 to 30 percent lower than non-consumers (an observational contrast, not a measured effect of giving anyone flavonoids), while IL-6 and TNF-α did not move at all, and other studies in the same table found no CRP effect either.[1]
Nuts. Especially walnuts and almonds. Part of the anti-inflammatory Mediterranean-style pattern.[1]
Olive oil. Extra virgin olive oil contains oleocanthal, which has anti-inflammatory effects strikingly similar to ibuprofen, acting on the same COX enzymes.[3]
Vegetables and fruit broadly. A higher intake of fruits, vegetables, and legumes is a core feature of the anti-inflammatory pattern.[1]
Ginger (and turmeric). Ginger supplementation has lowered CRP and TNF-α in randomized trials, giving it some real evidence as an anti-inflammatory food. Turmeric is popular for the same reason, but curcumin’s effect on inflammatory markers is not established in trials.[7]
The bigger picture. Diet is only one input: chronic inflammation is shaped by many non-dietary factors too, and inflammatory markers themselves are influenced by things like age, body composition, and physical activity.[1]
Sleep and stress. Both are commonly implicated in chronic inflammation and deserve attention alongside diet.
Exercise. Regular physical activity is among the non-dietary factors linked to lower inflammation.[1]
Gut health. The gut–inflammation axis is real: fermentable fiber yields short-chain fatty acids (especially butyrate) that support gut-barrier integrity, whereas a compromised barrier can let bacterial byproducts enter circulation and trigger systemic inflammation.[1]
What to do. If you have chronic inflammation:
Shift the balance. Less processed food, more whole foods. Less sugar, more vegetables. More olive oil and fish. Whole-diet-pattern shifts outperform single-nutrient tweaks for lowering inflammation.[1],[3]
Address other factors. Sleep, stress, and physical activity deserve attention alongside diet.[1]
Work with professionals. Chronic inflammation can have many causes. Diet is worth optimizing, but medical evaluation may be appropriate.[1]
Further reading:
- Calder PC et al., “A consideration of biomarkers to be used for evaluation of inflammation in human nutritional studies”[8] — British Journal of Nutrition, 2013
- Giugliano D, Ceriello A & Esposito K, “The effects of diet on inflammation: emphasis on the metabolic syndrome”[9] — Journal of the American College of Cardiology, 2006
- Longo V, The Longevity Diet[10] (2018) — Diet and inflammatory pathways
- Minihane AM et al., “Low-grade inflammation, diet composition and health: current research evidence and its translation”[11] — British Journal of Nutrition, 2015
Written by AI, directed and approved by me. How this is made →