From a biological perspective, we would expect and find plant strains that are bred to improve their human nutrient component to perform less well in a natural environment. (johnquiggin.com)
«Fiber» was initially thought of as a collective term for everything remaining after the known nutrient components in a food were digested and absorbed from the upper gastrointestinal (GI) tract. (naturalproductsinsider.com)
Far too many manufactured pet foods are nutritionally deficient either because the poor quality ingredients have been variously processed to remove desired nutrient components for human consumption: Or because other nutrients are destroyed or denatured by heat - processing and extraction methods that can leave various chemical contaminants and adulterants. (dogster.com)