Hello! For those interested in the protein, vitamin Bs and other nutrient profiles of seaweeds, read the following book: "Sea Vegetables -- Harvesting Guide and Cookbook" by Evelyn McConnaughey. Published by Naturegraph Publishers Inc. P.O. Box 1075 Happy Camp, California 96039 ISBN 0-87961-151-0 The author also talks about pollution uptake by sea vegetables. some sea vegetables have significant quantities of vitamin B12 I recommend this book. Mahesh