Need help on diet food please

Hi
I have tried to search the forum but i'm just getting confused. we have 5 cats and they had to be on m/d because of our diabetic cat that recently passed. they all gained quite abit of weight and now i need to change their food. before switching to m/d they were all on w/d and did fine, but they need to lose the weight with something first and then i can maintain with another. in the past i have used r/d - it does work but it dries their skin out. i was wondering if the iams diet is anygood. i'am feeding dry because it is easier and they all have been eating dry for years -our oldest is 14 and youngest is 9. Could you please recommend what would be a good diet food if the iams isn't any good? And after they have lost the weight what might be a good maintence food. thank you for any help - Kelly

Look for a senior food ...

Is there any way you can afford wet food for them all, it normally helps. And if not, a senior or light dry food, both have less calories so shoudl help.

Go back to the WD. Or do what I do - mix RD with WD dry

The most important thing is to meal-feed or feed meal-sized portions instead of free-feeding. If you can feed canned, that may help (I have one who has gained weight on canned, but it helps with most cats). Cats who are overweight generally aren't able to free-feed and lose weight.