Thanks, Jan--that's kind of what I thought. We kept our first pyr, Sugar, on regular food because she was so picky and it was always a challenge to keep her weight up. We moved Shelley to a light food because she tended toward portliness! Ivy and Paddy seem fine with a regular food, a bit less in the hot weather but they tend to be self-regulating. Ann, Peg, Paddington and Ivy Rose