my vet told me that my females needed vitamins, so i give them vi sorbits, but i also have read that giving a pregnant dog vitamins increase the need for a c section, so i am confused

but i have started all three on choc drops, they are loaded with vitamins, and on the weekend i went searching for those yogart drops, where did everyone say they got there"s ???when i asked everyone looked at me like i was wacko