What does seaweed do for dogs? Asked By: Orrin Purdy. Date created: Fri, May 7, 2021 7:20 PM. Best answers. Seaweed contains a wide range of nutrients that are extremely good for your dog. Among these are Omega-3 fatty acids, iron, iodine, and magnesium. Kelp has been found to help restore the health of your dog's skin and tissues. Answered By: Clemens Jones. Date created: Sat, May 8, 2021 9:23 PM. FAQ. =I Are boiled eggs good for dogs with diarrhea? Opt for bland, easily digestible ...