Beta-cryptoxanthin is a carotenoid found in yellow-, orange-, and red-hued produce, such as pumpkins and red peppers. Studies show this caroteniod could help reduce the risk of inflammatory polyarthritis by up to 40 percent. Get your fill from orange juice, carrots, and watermelon as well.

Polyarthritis is a condition that may lead to rheumatoid arthritis, an autoimmune disease that can cause fatigue, aches, swollen lymph nodes, fever, and stiff, painful joints. Severe rheumatoid arthritis may result in significant tissue destruction and disability. Diagnosing and treating the disease early may help slow disease progression and minimize serious health consequences. Eating a diet high in antioxidant-rich fruits and vegetables and protective, healthy fats from walnuts, fish, and flaxseeds may help combat inflammation. Limit red meat in your diet to no more than one serving per week as well. Red meat may aggravate inflammation.