Some cats have more sensitive stomachs than others, and therefore require food which is easier to digest. To help a cat’s digestion, you should provide food which is extra rich in fibre. FOS (fructooligosaccharides) and MOS (mannan oligosaccarides) are natural prebiotic fibres that promote the growth of healthy, active gut flora and help to calm a sensitive stomach. FOS helps beneficial gut bacteria to flourish, and MOS helps to inhibit the growth of harmful bacteria. An upset stomach can also be due to a food allergy. Common symptoms of this include diarrhea, vomiting, itching and other skin problems. It may be that your cat is allergic to a certain kind of protein, or that it is sensitive to wheat or other grains (such as corn and rice). Because cats are by their nature carnivores, their digestive tracts are designed to process protein rather than carbohydrates. As a result, it is quite common for cats to be sensitive to wheat and grains. This does not, however, mean that cats should exclusively eat meat. Starch is an excellent source of energy, and it works well as a complement to protein to help build and repair tissue. That is why we have added potato to our grain-free cat food. We also offer wheat-free food for cats that are sensitive to wheat. A sensitive stomach is not always due to food – it can have other causes such as stress or disease. In such cases, the problem requires professional help. Contact your vet to diagnose recurring problems.