Various factors can lead to sensitivities of variable severity at certain periods in a cat's life. These can include: changes in environment, changes in diet, seasonal factors or special features related to each individual cat. Some cats have a fussy appetite and are particularly difficult to satisfy, causing them to skip meals. This situation requires a nutritional answer in a diet that takes into account all the choice criteria that the cat uses when eating. Some adult cats have trouble digesting higher levels of starch in their food, which can result in loose stools and even diarrhea. Special sources of fiber can actually enhance digestion by providing nutrients that support the good bacteria in the large bowel. Mannan-oligo-saccharides are non-fermentable fibers may promote digestive health by acting as a decoy for pathogenic bacteria (salmonella, E. coli) in the intestine. Available in 15 lbs.