What food is good for multiple issues

Is there a food available that would be good for a cat with crystals and a cat with diabetes?  I have 8 cats in my house and I am trying to find one food I could feed to all of them.  The diabetic cat needs to gain not loose weight.

[opus88]

i can direct you to a wonderful site on cat nutrition, follow all the links on right hand side for brand names of all the best commercial cat foods on the market. This Vet promotes raw diet but also gives advice for us who aren't ready to go that route yet....
Brands such as EVO or Natural Balance or Wellness....all 'grain free' are a few that come to mind.
I too had a cat with crystals and needed to get him OFF dry food. its a must that they eat can foods with a much higher water content or else the crystals will continue to become worse until a blockage occurs.
good luck♥

www.catinfo.org