New research has shown that eating a Mediterranean diet may help ease rheumatoid arthritis pain. A small Swedish study published in the Annals of the Rheumatic Diseases showed patients on the Mediterranean diet showed improvements in both physical function and vitality after 12 weeks. Patients also lost 3 kg in weight, and their cholesterol levels fell after only three weeks. The experimental diet used olive and canola oils as a primary source of fat. It was high in fish, poultry, fruit, vegetables, and legumes, and low in red meat and high fat dairy products. Patients following their normal diet did not experience any improvement in symptoms.