Jack Norris, RD just updated his iodine page, based on a worrisome new study indicating that many vegans have inadequate iodine levels. Non-pregnant adults should be over 100 micrograms per liter, and it turns out that vegetarians are at a comfortable 147 micrograms. Vegans, by contrast, stood at just 79 micrograms. One vegan in this tiny study clocked in at just 9 micrograms! I hope he’s enjoying his goiter.
The tragedy here is that deficiency is ridiculously easy to prevent. Basically, if you’re vegan and not taking a multivitamin with iodine, regularly using iodized salt, or frequently eating seaweed, you’re setting yourself up for problems.
It’s a safe bet that some vegans never take a multivitamin, eat seaweed, or use iodized salt. These people are on a collision course with iodine deficiency.
Don’t let this happen to you. Resolve to take a daily iodine-containing multivitamin. And if you like the stuff, get in the habit of eating seaweed for good measure. I make a crock-pot of miso soup every week, to which I add a couple tablespoons dulse flakes. And Arame salad is another of my favorites.