The average amount of a nutrient a healthy person should get each day. RDAs vary by age, gender and whether a woman is pregnant or breastfeeding. (Source)
Adults: 150 mcg
Pregnant: 220 mcg
Lactating: 290 mcg
Nori (seaweed)
232 mcg per serving
Cod
158 mcg per 3 ounces
Iodized salt
152 mcg per 1/2 teaspoon
Greek yogurt
116 mcg per cup
Cottage cheese
65 mcg per cup
Eggs
26 mcg per egg
Shrimp
13 mcg per 3 ounces
Tuna
7 mcg per 3 ounces