Iodine intake may be falling short in many American diets

Science News reports that a study estimated inadequate iodine intake among 24 percent of women and 30 percent of men age 14 and older in 2017–18. It cites an analysis reporting that 53 percent of table salt sold in U.S. stores is iodized; prepared foods generally use noniodized salt. Iodine is needed to make thyroid hormones essential for fetal and early childhood brain development.