During the 1950’s-1970’s, researches a series of independent
observational consumpion studies suggested that dietary fiber (__3__) intake was associated with a number of health benefits. Dietary fibre as a class of (___4___) compounds includes a mixture of plant carbohydrate polymers, both oligosaccharides and polysaccharides, (___5____) e.g., cellulose, hemicelluloses, pectic substances,