Should I include coconut milk in my diet if I have arthritis?

Yes. Coconut oil massage with heat helps relieve pain. Caprilic acid from coconut oil helps get rid of systemic yeast infection like candidiasis.
No. Caprilic acid which is from coconut milk helps with getting rid of yeast esp in gut.
Not really. Only if you like the taste. It has not been proven to have any medicinal benefit.