RE: vitamin D question...

[jdf]

do cats who are exclusively indoor cats need to be given vitamin D supplement?

[Traci]

Not if you're feeding a high quality cat food. Most commercial brands are sufficient in proper vitamin formulation. See below for potential risks of oversupplementation.

See here for functions of vitamins

And here for vitamin deficiencies and toxicities

[jdf]

Thanks for the good info, Traci ... J