Do you have any dry food brand recommendations? We feed our cats Purina(buy the 40lb bags) I believe, but that's just because that's what my mom was feeding them before I took them and it's affordable. I'd love to feed them healthier though, especially if it could lengthen their lifespan.

I feed our fat cat Fancy Feast every other day. We tried a bunch of different healthier wet foods from Petco, but he either didn't seem to care for it, or I couldn't stand the smell. Our skinny cat always throws up the wet food when he eats it, so he doesn't get any(despite him stealing the other cats when we're not looking).