This book discusses glycobiology and various forms of human diseases. Topics covered include immunoglobulins, inflammation and glycosylation, the role and therapeutic significance of natural anti-glycan antibodies in malignancies and in normal and aberrant pregnancy, identifying urinary glycans as a possible method for the diagnosis of lysosomal storage diseases, glycobiology of human milk (biological roles and diseases) and pectins as biological modulators of human physiological reactions. The book includes analysis of comprehensive data and some productive conclusions and perspectives.