While iodine deficiency is not common in Western countries, you can prevent it by eating a varied diet, including good food sources of iodine, like seafood and yogurt
The best way to get enough iodine is to add iodized salt to your meals. Half a teaspoon (3 grams) over the course of the day is enough to avoid a deficiency. If you think you have an iodine deficiency, it's best to consult your doctor
