Although there are no official dietary recommendations for people with arthritis, they should limit foods that contribute to inflammation, such as processed foods, saturated fats, trans fats and added sugar, notes the Arthritis Foundation. They should also limit sodium, which contributes to high blood pressure, to about 2,300 milligrams a day.
Foods high in saturated fat include meat and full-fat dairy products, as the Arthritis Foundation explains. Because dairy products are a good source of vitamin D, experts recommend that adults eat or drink about 3 cups of low-fat or fat-free dairy products each day.
Eating plant-based foods also helps limit inflammation, notes the Arthritis Foundation. Experts recommend at least 1 1/2 to 2 cups of fruit and 2 to 3 cups of vegetables each day. Mixing colors is a good way to get the necessary nutrients with each meal. For example, dark green vegetables like spinach and broccoli, red tomatoes, yellow squash and orange sweet potatoes make a healthy mix.
Whole grains also help lower blood markers for inflammation, such as C-reactive protein, according to the Arthritis Foundation. Whole grains include foods like brown rice, oatmeal, bulgar and whole wheat. Omega-3 fatty acids also keep inflammation under control. Fatty fish, such as salmon, are a good source of these. The recommended intake of omega-3 fatty acids for people with arthritis is up to 2.6 grams two times a day, either from food sources or a supplement.