A study examined early life events effects on cat digestive issues later in life.  More than twelve hundred owners of kittens 16 weeks of age or younger completed a questionnaire.  The pet owners were given a subsequent questionnaire for the same cats between six months and 30 months of age.

Kittens that had had issues of vomiting or diarrhea and those not exclusively fed commercial diets that met the World Small Animal Veterinary Association (WSAVA) nutrition guidelines were more likely to visit veterinary practices specifically for gastrointestinal signs on at least two occasions between six months and 30 months of age.

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Exploring early life events including diet in cats presenting for gastrointestinal signs in later life.