Are grains really bad for cats?

Grains can cause intolerances in cats. An intolerance to grain is not harmful to cats, but it can cause discomfort in terms of gut health and overall skin condition. An intolerance to grain can cause:

• Itchy and uncomfortable skin, or flaky skin
• Ear infections and build up of wax in the ears
• Irregular bowel movements or discomfort in the gut
• Vomiting or diarrhea.