2001 S. Lincoln Ave. Sure, but think about it. Cats like their food because they can smell it. So if a cat can't smell its food, it's not going to eat. There is a brief silence.
Cats get upper respiratory infections all the time.
So you have a fat cat that gets the flu and can't smell. The cat stops eating. You have anorexia in the presence of abundant fat stores. The body will try to feed itself by moving body fat stores to the liver to be converted into fuel. This doesn't happen to thin cats.