Irish Moss is an amazing sea vegetable, also referred to as Sea Moss (although technically they are from different species, but they are used in the same way). This incredible seaweed has been used for centuries to support a wide variety of ailments, from respiratory issues, bladder disorders, bronchitis, halitosis (bad breath), intestinal disorders and glandular problems to swollen joints, lung difficulties, thyroid conditions, tuberculosis, tumors, and ulcers.