Composition and methods for treating infectious and inflammatory diseases using saccharide based products and therapies. Products can be implemented as a nutritional supplement, a food, a feed, a food additive, a feed additive, a therapeutic product, a rehydration salt, or a rehydration solution. The present disclosure relates generally to the fields of compositions and products containing the compositions, and the use of the compositions or the products for preventing and/or treating infectious or inflammatory diseases or conditions in particular gastrointestinal and respiratory diseases (diarrhea and influenza infections) or inflammatory.