If you're looking for natural thyroid function support, you've found it with Dr. Christopher's Thyroid Maintenance Formula. Dr. Christopher's formula utilizes the natural nutrition of Kelp, a sea vegetable. Kelp is a nutrient-dense plant that happens to be one of nature's best sources of iodine, an essential mineral for healthy thyroid function. Thyroid Maintenance Formula also uses plant-derived capsules with absolutely no fillers. So you can be confident you're supporting your thyroid with nutrition straight from Mother Nature herself.