I been feeding this kelp to my dogs for more than a decade - they have amazing coats and not one metabolic issue in any of my 5!

Dogs need natural thyroid support too! We have organic kelp from the North Atlantic - and it only takes a little - for a small dog under 15#'s would be 1/8th tsp, 1/4 tsp for a medium size dog up to 35#'s and 1/2 tsp for dogs over 35#'s. This one pound bag may last a year or more depending on the size of the dog(s) you have!!!