It is characterized by fatigue, malaise, feeling cold, usually body weight gain, swelling, constipation. In patients with hypothyroidism it is advised to intake of blue fish such as tuna, mackerel, herring, salmon that are rich in selenium and omega-3 fatty acids, seafood and shellfish. It is also recommended higher intake of grains, brown rice is rich in selenium, nuts, sunflower seeds, citrus fruits, bananas, strawberries, plums and vegetables in particular stresses the importance of carrots and peppers.