Foods to Avoid If You Have Arthritis

15. Nightshade Vegetables (For Some People)

Nightshades, including tomatoes, eggplants, peppers, and potatoes, are controversial in the arthritis community. These vegetables contain solanine, a natural compound that some believe can worsen joint inflammation and pain. While scientific evidence is mixed, some arthritis patients report relief when they eliminate nightshades from their diet. If you suspect these foods are contributing to flare-ups, try removing them for a few weeks and monitoring any changes in your symptoms.

16. Processed Meats

Bacon, hot dogs, sausages, and deli meats are all examples of processed meats, which contain high levels of preservatives, sodium, and advanced glycation end products (AGEs). AGEs are compounds that form when proteins or fats are exposed to high heat, such as in grilling or frying. Research in The Journal of Nutrition, Health & Aging indicates that AGEs contribute to oxidative stress and inflammation in the body, worsening arthritis symptoms. Swapping processed meats for lean, unprocessed protein sources like fish, chicken, or plant-based proteins can help reduce inflammation.