All known minerals are contained in the sea and the shellfish that live there concentrate within their system a unique "cocktail" of trace elements. An extract from one such shellfish, the New Zealand green-lipped mussel, has been found to relieve symptons of osteo- and rheumatoid arthritis. Revised and fully updated, this book is about the green-lipped mussel and the safe and effective treatment that has been developed from it, a treatment which offers freedom from pain and a restoration of mobility for many sufferers of arthritis.