If you are asymptomatic regarding
liver disease and
liver function tests are normal, then you can start tab carbimazole in low dose, 15mg daily.
However if liver functions are deranged or you have symptoms, discuss with your Dr. For option of Radio active iodine( RAI).
Avoid sea food, iodised salt,gluten, caffeinated beverages, energy drinks
Take green leafy vegetables, nuts,legumes, berries.