What is it?Nature's Garden Sea Kelp is a herb sourced from the brown seaweed and is a natural source of the mineral Iodine. Kelp also contains alginate.Iodine Contributes to Normal Thyroid Function Sea Kelp Supports in Weight Management Suitable For Vegetarians and Vegans What Are the Benefits of This Supplement?Iodine contributes to normal thyroid function and the production of thyroid hormones. Kelp supports in weight management.