Some foods that contain iodine are seaweed, fish, dairy products, bread, eggs and cod, states the National Institutes of Health's Office of Dietary Supplements. Different types of seaweed, which are rich sources of iodine, are kelp and nori. However, iodine content in different types of seaweed does vary.
For example, depending on the type of seaweed consumes, it can have between 16 and 2,984 micrograms per serving, as noted by the National Institutes of Health's Office of Dietary Supplements. Another good source of this trace mineral is seafood, such as cod, scallop and shrimp. Cod has 99 micrograms per serving. Yogurt and milk are dairy products that provide adequate amounts of iodine.
Some vegetables and fruits also are good sources of nutrient, including strawberries, bananas, cantaloupe, sweet potatoes and onions, according to the World's Healthiest Foods. Iodized salt has approximately 71 milligrams per serving, and may be an alternative source for getting this important nutrient through diet.
Iodine is a mineral that is important for the proper functioning of the thyroid gland. An iodine deficiency can lead to goiters and hypothyroidism. The recommended dietary allowance (RDA) for iodine is 150 micrograms per day for adults, notes the American Thyroid Association. Pregnant women require 220 micrograms per day. Through a diet that contains foods with this nutrient, people can ensure that this recommendation is met.