I have two indoor cats and I have dry food available all the time and I split a small can of wet food at 5pm. All they need to hear is the pop of the canand they are sitting there waiting on me to get it in the bowls. I have one that is 16 years old and one that is 2 and I've never had a fat cat by doing this. My other baby was 11 years old when I had to put her to sleep due to failing kidneys.