Sonam turned to Instagram to advise her fans. "Just a note to all the vegetarian or vegans out there! Please make sure you're using salt with iodine in it. I've just found out I have an iodine deficiency," she wrote.
Note: Common signs and symptoms of iodine deficiency
On a related note, common signs and symptoms of iodine deficiency include swelling in the neck area, unexpected weight-gain, fatigue, hair loss, flaky skin, irregular periods, among others. If you notice one or more of these symptoms, talk to your doctor as soon as possible.