Can food change a cat?
 

My cat is a really fussy eater, she spends most of her time loitering and being grumpy. We've tried lots of brands, but at best she'll eat chicken mixed with a few biscuits (she even turns her nose up at the chicken sometimes). I was given some Purina One Dual Nature to trial, my expectations were low (I've tried her on other expensive brands) but she happily ate it. Since she's been eating she's like a changed cat in her personality, she's really playful and happy, could this be the change in food? Can food actually make a difference like this? I've presumed that being grumpy was her personality, but has she been this happy cat all along and the foods bought it out? The new food contains spirulina.

Welcome to the forum!

It's been my experience that many cats LOVE foods of varying quality.
I'm big into nutrition for my cats and myself. That said.....if every meal is a struggle and kitty seems happiest on the cheaper food...... I'd try to sneak some good food in with the cheap food from time to time.

In addition, some cats like kibble and you can get high quality kibble - you may want to try adding that into the diet from time to time
Good luck!

It is possible there is an ingredient in the previous food that your can't isn't digesting well making her feel a bit grumpy. Have you tried different proteins or always chicken?

[QUOTE=growler~GateKeeper;1081286]It is possible there is an ingredient in the previous food that your can't isn't digesting well making her feel a bit grumpy. Have you tried different proteins or always chicken?[/QUOTE]

or it could be a sign of illness as well?