The brain region called the hippocampus is the center of learning and memory in the brain, and the brain cells in this region are often the first to be damaged. That's why memory loss is often one of the earliest symptoms of Alzheimer's.
Most cheese contains some amount of iodine, but the exact amount depends on what type of cheese you're eating. An ounce of cheddar cheese, for example, contains 12 micrograms of iodine, which is 8 percent of the amount you need for the day. Mozzarella cheese is a good source of iodine as well, according to HealWithFood.org. Sheep and goat cheese supply iodine, too.
As a general rule (that does have numerous exceptions, however), shellfish are more concentrated in iodine than finfish. Two of our dairy foodsâcow's milk and yogurtâas well as eggs rank as very good sources of iodine. You can get about 20% of your daily iodine from 4 ounces of cow's milk, 1 egg, or 1/2 cup of yogurt. The WHFoods that we have described above account for all but one of our ranked food sources of iodine.