Psoriatic arthritis is an autoimmune disorder that impacts millions of people worldwide. It’s characterized by signs of arthritis (like joint pain, stiffness, and inflammation) as well as psoriasis (a skin condition leading to scales and plaques). While there’s no cure for psoriatic arthritis, it can be managed with healthy nutrition. Certain foods can worsen the symptoms, while others may soothe them. Here’s a closer look at psoriatic arthritis and the foods to eat and avoid. What is psoriatic arthritis? People with a chronic skin disease called psoriasis have red patches, especially on the elbows, knees, and scalp, with layers of silvery scales on top. These patches are often itchy and painful. In many cases, psoriasis leads to the development of a severe condition called arthritis, which primarily affects one’s joints. Psoriatic arthritis can cause symptoms like swollen toes and fingers, lower back pain, nail pits, and eye inflammation. It can be mild or severe, with flare-ups and remission phases. Foods to eat with psoriatic arthritis The following foods may help improve the symptoms of this condition: Fatty fish Fatty fish like salmon, mackerel, sardines, and trout are rich in omega-3 fatty acids. The acids have anti-inflammatory properties that can help reduce joint pain and inflammation.