Natural treatments for hyperthyroidism include making dietary changes and taking supplements to increase the body's levels of calcium and vitamin D, according to the Mayo Clinic. While natural treatments may help to improve overall health and moderate thyroid function, they are typically used in conjunction with other treatments designed to bring thyroid activity to a normal level, such as radioactive iodine, anti-thyroid medications or beta blockers.
Working with a dietitian to add calories to the diet, especially in the case of extreme weight loss, can be helpful when initially dealing with hyperthyroidism, according to the Mayo Clinic. Once a patient gains weight back, they may cut additional calories from their diet to prevent weight gain. Patients should eat nutrient-dense foods to get the most benefit from food without excessive caloric intake. Managing sodium and calcium levels is also important in treating hyperthyroidism.
Hyperthyroidism can contribute to thinning bones, according to the Mayo Clinic. For this reason, it is important that the diet is supplemented with both calcium and vitamin C to prevent osteoporosis. Adults ages 19 through 70 need 600 IUs of vitamin D daily, and adults over 71 need 800 IUs daily. Adults ages 19 through 50 and men ages 51 to 70 should take 1,000 milligrams of calcium daily, and women over 51 and men over 71 should take 1,200 milligrams daily.