Natural Factors Norwegian Kelp is a natural source of the mineral iodine which is essential for healthy thyroid function. It is harvested from the cool waters of the North Atlantic Ocean and is a natural source of important nutrients, such as potassium, calcium, and magnesium.
Each tablet contains:
Iodine (Ascophyllum nodosum) (whole plant)
From 575 mg of kelp (pure milled Norwegian kelp harvested from kelp beds in the cool water of the North Atlantic)