Bioavailability of Iodine for Natural Kelp and Iodized Salt in Young Adults

administrated a 150 ml - 200 ml of iodine-containg spareribs soup delivering ≈ 600 µg or 1200 µg iodine

administrated 45 g or 80 g natural kelp delivering ≈ 600 µg or 1200 µg iodine (intrinsic iodine). The natural kelp will be approximately produced in an experimental barn feeding supplementary iodine to reach a final iodine intake of ≈ 600 µg or 1200 µg. The iodine intake of natural kelp will be adjusted to the required dose by determing iodine content in the natural kelp.