Kelp is a type of seaweed that is usually dried and granulated or ground into a powder. You can add it to drinks or water, used as a condiment and flavoring or as a salt substitute. It is a rich source of vitamins, especially the B vitamins, as well as many valuable minerals and trace elements. It is used to aid brain tissues and the membranes surrounding the brain, the sensory nerves and spinal cord, blood vessels and fingernails. It has also been found beneficial in the treatment of thyroid problems because of its high iodine content. It has also been used to reduce hair loss, obesity and ulcers. It protects against the effects of radiation and softens the stool. It can be used instead of a multi-mineral if used daily.