Several foods, supplements, and dietary compounds have measurable anti-inflammatory effects, backed by clinical research. The most studied include omega-3 fatty acids, curcumin (from turmeric), boswellia, quercetin, green tea, and bromelain. Each works through different pathways, so understanding what they actually do in the body helps you pick the right ones for your situation.
Omega-3 Fatty Acids
The two omega-3s that matter most for inflammation are EPA and DHA, found in fatty fish like salmon, mackerel, sardines, and anchovies. They work by competing with omega-6 fatty acids for the same enzymes in your body. Since omega-6s tend to produce compounds that promote inflammation, shifting the balance toward omega-3s results in fewer inflammatory signals overall.
A large umbrella meta-analysis of clinical trials found that omega-3 supplementation significantly reduced C-reactive protein, one of the most widely used blood markers of systemic inflammation. The effect was strongest in people with diabetes and in adults over 55. You can get meaningful amounts through diet alone: two to three servings of fatty fish per week is the standard recommendation. Plant sources like flaxseed, chia seeds, and walnuts provide a precursor form (ALA) that your body converts to EPA and DHA, though the conversion rate is low, typically under 10%.
Curcumin From Turmeric
Curcumin is the active compound in turmeric and one of the most thoroughly researched natural anti-inflammatories. It works by blocking a master inflammation switch inside cells that controls the production of dozens of inflammatory proteins. When this switch is suppressed, your body produces fewer of the chemical signals that drive swelling, pain, and tissue damage. Curcumin also inhibits a cellular structure called the NLRP3 inflammasome, which is involved in the kind of chronic, low-grade inflammation linked to metabolic disease, joint degeneration, and cardiovascular problems.
The biggest challenge with curcumin is absorption. On its own, very little reaches your bloodstream because your liver breaks it down quickly. Pairing curcumin with piperine, a compound in black pepper, increases absorption by up to 2,000% in humans. Most well-formulated curcumin supplements include piperine or use other delivery methods like fat-based capsules or nanoparticle formulations to get around this problem. Cooking with turmeric is fine for general health, but the curcumin content of the spice itself is only about 3% by weight, so supplements are necessary for a therapeutic dose.
Boswellia (Indian Frankincense)
Boswellia serrata extract targets a different inflammatory pathway than curcumin. Its active compounds, boswellic acids, are potent inhibitors of 5-lipoxygenase, an enzyme that produces leukotrienes. Leukotrienes are inflammatory molecules especially active in joint tissue, which is why boswellia has become a go-to for osteoarthritis and joint pain specifically.
In a double-blind, placebo-controlled trial of people with knee osteoarthritis, standardized boswellia extract showed improvements within five days. By 90 days, pain scores dropped by 45 to 62%, stiffness improved by 65 to 69%, and physical function improved by 69 to 74%, depending on the dose. Radiological imaging even showed improvements in the space between knee bones and a reduction in bone spurs. The extract also appears to preserve cartilage by inhibiting enzymes that break down the structural proteins in joint tissue.
Quercetin
Quercetin is a flavonoid found in onions, apples, berries, capers, and broccoli. It has a unique anti-inflammatory profile because it stabilizes mast cells, the immune cells responsible for releasing histamine. By blocking calcium channels on these cells, quercetin reduces histamine release, leukotriene production, and the cascade of inflammatory signals that follow. This makes it particularly relevant for allergy-driven inflammation, not just the generalized kind.
Quercetin also helps balance the immune system by shifting the ratio between two types of immune responses (Th1 and Th2), reduces the infiltration of eosinophils (white blood cells that drive allergic inflammation), and lowers IgE antibody production. People dealing with chronic sinus issues, skin reactions, or respiratory inflammation may find quercetin especially useful. Like curcumin, it has absorption issues on its own, and is often paired with vitamin C or bromelain to improve uptake.
Green Tea (EGCG)
The primary anti-inflammatory compound in green tea is EGCG, a polyphenol that blocks the same master inflammation switch that curcumin targets. EGCG also suppresses TNF-alpha, one of the body’s most powerful inflammatory signaling molecules, and inhibits the production of IL-8, a protein that recruits immune cells to sites of inflammation. The combined effect is a broad dampening of inflammatory activity.
Three to four cups of green tea daily provides a meaningful dose of EGCG. Supplements concentrate it further, but high-dose green tea extract has been associated with liver stress in some people, so whole tea is generally the safer long-term option.
Bromelain
Bromelain is a group of enzymes extracted from pineapple stems. It reduces inflammation through a different mechanism than the plant compounds above: it breaks down proteins involved in swelling and fluid accumulation. This makes it especially effective for acute, trauma-related inflammation rather than chronic conditions. In one clinical trial comparing bromelain to a standard prescription anti-inflammatory after oral surgery, bromelain at 500 mg twice daily for five days managed post-operative pain and swelling comparably.
Fresh pineapple contains some bromelain, but the highest concentrations are in the stem, which you don’t typically eat. Supplemental bromelain is the practical route if you’re using it for a specific inflammatory episode.
The Mediterranean Diet as a Whole
Individual supplements get most of the attention, but the overall pattern of what you eat may matter more. A systematic review and meta-analysis of randomized controlled trials found that the Mediterranean diet produced the most significant reductions in inflammatory biomarkers of any dietary pattern studied. It lowered IL-6 (a key driver of chronic inflammation) by an average of 1.07 pg/mL and IL-1 beta by 0.46 pg/mL. Notably, neither the DASH diet nor vegetarian or vegan diets showed substantial effects on these same markers.
The Mediterranean diet is built around olive oil, fatty fish, nuts, legumes, whole grains, fruits, and vegetables, with limited red meat and processed food. Many of the individual anti-inflammatories on this list (omega-3s, quercetin, EGCG-like polyphenols) are naturally abundant in this eating pattern, which likely explains why the whole-diet approach outperforms isolated nutrients.
Interactions With Medications
Natural does not mean free of side effects, especially if you take blood-thinning medications like warfarin. Several common anti-inflammatory herbs and supplements have documented or theoretical interactions with anticoagulants:
- Garlic increases bleeding risk by reducing platelet aggregation and has been linked to postoperative bleeding events.
- Ginkgo biloba inhibits a platelet-activating factor and has been associated with intracerebral hemorrhage in patients also taking aspirin or warfarin.
- Ginger may increase bleeding risk through reduced platelet aggregation.
- Bromelain may potentiate the anticoagulant effect of warfarin.
- Green tea can reduce warfarin’s effectiveness due to its vitamin K content, pushing clotting markers in the opposite direction.
- Dong quai contains coumarins and has caused widespread bruising when combined with warfarin.
Iron, magnesium, and zinc supplements can also reduce warfarin absorption by binding to it in the gut. If you’re on any blood-thinning medication, the timing and choice of anti-inflammatory supplements requires careful consideration. Even ginseng has produced unpredictable results, with both increases and decreases in clotting markers reported.