When pets have been on a cooked or cereal-based diet, their bodies do not produce the enzymes required to efficiently digest raw food. The pH level of the stomach isn’t quite right and they don’t have the right sort of bacteria in the gut. We therefore recommend that raw food be introduced slowly, over at least 7 days, giving the gut time to adjust for healthy digestion. If your pet has been on a dry or cooked diet for some time – or if it has a very sensitive stomach – it may need longer than 7 days.