Why Rheumatologists Recommend Fatty Fish as an Anti-Inflammatory Staple

Fatty fish is a top food rheumatologists recommend for easing inflammation. It delivers omega-3 fats that help calm inflammatory pathways, along with vitamin D and selenium. It is also easy to work into everyday meals.

Key Points

• Ongoing inflammation can damage tissues and contribute to chronic disease if it is not addressed.
• Fatty fish is the leading anti-inflammatory food many rheumatologists suggest for reducing inflammation.
• It contains omega-3s, vitamin D, and selenium, and it is highly versatile in the kitchen.

Inflammation is often talked about, but it is worth understanding what it does. In its acute form, inflammation is part of the body’s defense system. When you get a cut, white blood cells rush in to protect the area and support healing. That short-term response is helpful. Chronic inflammation is different: it can persist for months or even years. When the body stays in that state, healthy tissues and organs can be harmed, raising the risk of problems such as heart disease, type 2 diabetes, certain cancers, and autoimmune disorders.

Food can help turn that process down. A diet centered on fruits, vegetables, whole grains, fatty fish, nuts, seeds, legumes, and unsaturated fats may help reduce inflammation. Asked which single food they recommend most, rheumatologists consistently chose fatty fish. Here is why it stands out.

High in Anti-Inflammatory Omega-3s

Salmon, mackerel, tuna, sablefish, sardines, anchovies, herring, and pollock all have something important in common: they are rich in protein and provide omega-3 fatty acids, especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). According to Gregg Silverman, M.D., a rheumatologist, these fats help block inflammatory pathways in the body. They may also lower the inflammation linked to conditions such as heart disease, diabetes, and kidney disease.

EPA and DHA can also affect immune function. Research suggests they may switch off genes that drive inflammation and help shape how immune cells respond. That matters because, as Deborah Alpert, M.D., PhD, explains, an overactive immune system can attack the body’s own tissues, including joint linings in inflammatory arthritis. She adds that omega-3s in fatty fish can reduce the production of inflammatory mediators such as prostaglandins and leukotrienes.

Provides Other Anti-Inflammatory Nutrients

Studies have found that people with autoimmune disorders often have lower vitamin D levels. Fatty fish is one of the best natural food sources of this nutrient. For example, a serving of sockeye salmon provides about 60% of your daily vitamin D needs in a 3.5-ounce portion. Vitamin D helps regulate the immune system and can help dial down inflammation before it damages cells.

“Regular consumption of fatty fishes, including sardines and anchovies, are excellent low-mercury options that lower C-reactive protein (CRP), which is a major blood marker of systemic and cardiovascular inflammation,” Silverman says.

Fatty fish also contains selenium, a mineral and antioxidant that can help blunt mercury’s effects. Selenium can bind to mercury in fish and aid in removing it from the body. It also helps protect cells from damage and supports lower inflammation. A 3-ounce serving of salmon provides nearly half of your daily selenium needs.

May Help Reduce Heart Disease Risk

Chronic inflammation can affect vital organs, including the heart. People with rheumatoid arthritis, for example, face a 50% higher risk of developing or dying from heart disease and are also more likely to develop heart failure. Researchers believe chronic inflammation plays a major role by encouraging plaque buildup in the arteries.

Eating more fatty fish may help offset that risk. Alpert says studies have found that fatty fish, but not lean fish, is linked with a lower risk of heart disease and death. People who ate the most fatty fish had an 8% lower risk of developing coronary heart disease and a 17% lower risk of dying from it.

Easy Ways to Eat More Fatty Fish

There are many simple ways to include more fatty fish in your routine:

• Pair it with other anti-inflammatory foods. Serve fish with roasted vegetables, sweet potatoes, leafy greens, nuts, or berries for an added boost of antioxidants and anti-inflammatory compounds.
• Use it instead of red meat. Many people do not eat enough fish during the week. If your meal usually includes red or processed meat, replace it with fish at least once weekly. Smoked salmon is a strong high-protein, omega-3-rich swap for bacon or sausage at breakfast.
• Cook it different ways. Fatty fish can be pan-seared, poached, baked, grilled, or cooked in an air fryer. It also cooks quickly, usually in about 15 minutes.
• Flavor it with herbs and spices. Add fresh or dried herbs and spices to bring out flavor without relying on salt. Turmeric, ginger, garlic, and rosemary also bring their own antioxidant and anti-inflammatory benefits.
• Choose healthy fats. Fatty fish does not need much added fat because it releases some of its own while cooking. When extra fat is needed, use unsaturated oils such as olive or avocado oil.
• Add it to favorite meals. Try fatty fish in tacos, grain bowls, salads, pasta, sandwiches, or fajitas.
• Use fresh, frozen, or canned. All forms count. Frozen fish can go directly from freezer to oven without thawing, and canned fish is convenient, budget-friendly, and shelf-stable.

Recipes to Try

What the Experts Say

Rheumatologists consider fatty fish a standout anti-inflammatory food. It combines omega-3 fats with vitamin D and selenium, may help lower heart disease risk, and works well in many meals. It is also affordable and flexible. Aim to eat at least two servings a week, whether you pair it with vegetables, swap it in for red meat, or season it with herbs and spices.