On balance, changing your diet probably won’t have as great an impact on your arthritis as your medical treatments, and we don’t recommend stopping any of your drug treatment without discussing it with your doctor first. But research has discovered several links between arthritis and diet, so it’s still worth thinking about what you eat. The two most important things to think about are:

your weight – if you’re overweight, losing some weight will reduce the strain on your joints, so you may find you don’t need to take painkillers quite so often.
whether your diet gives you the vitamins and minerals you need – a good diet can help to protect you against some possible side-effects of drugs and against heart disease (which can sometimes be a complication of certain types of arthritis).

Some forms of arthritis and some drugs used to treat them are linked with an increased risk of heart and circulatory problems. Several of the diet and lifestyle changes which are useful for arthritis are also useful for heart and circulation health, including exercise and omega-3 fatty acids.

If you have any type of arthritis you should try to eat:
a balanced and varied diet to get all the vitamins, minerals, antioxidants and other nutrients you need
a more Mediterranean-style diet which includes fish, pulses, nuts, olive oil and plenty of fruit and vegetables
more omega-3 fatty acids, for example from oily fish.
You should also exercise regularly.