The most effective way of treating hypothyroidism, is to reduce its common symptoms by taking proper medications and by following some hypothyroidism diet tips. Experts say that, once hypothyroidism is diagnosed, your TSH range should be within, 1mU/L to 3mU/L. You will need to follow a certain hypothyroidism diet plan and a disciplined lifestyle, in order to keep your thyroid-stimulating hormone levels significantly down and get relief from the fatigue.