I imagine that you'll still end up buying something they won't eat - despite
recommendations. There is no guaranty that what works for my cat or other
cats will work for your cats, as like humans, cats are individuals.

That being said, what has worked for my cat was to cut back the amount of
canned food being fed and switch from Wellness Adult to Wellness Lite for
the free feed kibble. As well, I've made a conscious effort to provide more
my cat with more exercise. As a result, the desired weight loss has been
achieved.