London: If you are a smoker and love to eat a high-salt diet, you may be at a greater risk of developing rheumatoid arthritis (RA), researchers say.

"Our findings suggest that more than half (54 percent) of the increased risk from smoking in the development of rheumatoid arthritis is due to interaction with sodium intake," said Bjorn Sundstrom from department of public health and clinical medicine at Umea University, Sweden.