Symptom Checker. 1  Numbness in one foot and Numbness in Both Feet (31 causes) 2  Numbness in one foot and Tingling in one foot (31 causes) 3  Numbness in one foot and Tingling in Both Feet (30 causes)  Numbness in one foot and Tingling in both hands (30 1  causes) Numbness in one foot and Tingling in one hand (30 causes)
Other foods that are iodine-rich are shrimp, shellfish, sushi and seaweed. Reduce the iodine in your diet if your doctor determines that your iodine levels are too high. In some cases, too much iodine overstimulates the thyroid and pituitary glands and can cause a goiter.
While peanuts should be avoided if you're trying to improve your thyroid function, cashews, sunflower seeds and sesame seeds are good alternatives. Used by the Japanese in cooking for centuries, kelp, which is high in iodine, is recommended to improve thyroid function, according the World's Healthiest Foods website.