Essentially I do agree with this, it's hard to gauge the nutritional value from a can of food - having to trust what they write as being accurate, when this may or may not be the case. Just putting this here for reference for anyone who would like some insight. What may appear to be *adequate* might not be so for a nutritionally-compromised feline.If you’re feeding a complete food, there’s no need to add vitamin d into your cat’s diet, unless they have a health condition that requires it.
I don't know - this is what has been said above as well - and again - how do you know that what they write on a label is accurate - across the board?Vitamin D (like A and E) is fat soluble, and there is a real risk of overdose that could cause liver damage.
Just because we take vitamin supplements ourselves sometimes does not mean that our cats need them.
If you are feeding a good complete cat food then it will contain all the vitamins and minerals they need and you do not need to add supplements, and adding fat soluble ones like vitamins A, D, and E could be dangerous. They do not need more and overdose of those is real and damaging.