How to put one cat on a diet when the other needs more nutrients?

Yellow: How to put one cat on a diet when the other needs more nutrients?
So we have 3 cats. One is HUGE, the other has a little pudge on the tummy but nothing horrible, and the last is teeny tiny and really needs more nutrients in her diet.

My question is, how do we ensure that our heavy cat can effectively diet when we have another cat that we need to feed richer cat food?

Answers and Views:

Answer by Elaine M
You have a home with doors. Put the one with special food requirements into a room with a door on it and close the door while she eats.

Feed the others in different rooms or in different corners of the kitchen. Call each one’s name as you put the food bowl down.

Answer by Georgia Gal
put them in different rooms with different food bowls if need be

Answer by Jessica
Okay, this may be difficult, but feed them in separate rooms with the doors closed so the other cant get to the food. Do not let either cat near the other cat’s food, so they understand whose food is whose. Told ya, it would be difficu;t. Good luck with the kitties!