Hi everyone!! My name is heather and im a new yorkie owner. My baby's name is sir bentley zagato... But we just call him bentley

i got him last thursday and i am in LOVE. But of course i do have questions... My main concern at the moment is VITAMINS. I bought some pro sense puppy vitamins from walmart but im not sure if i should give them or not?? Any opinions??? If i need to post ingredients i can. Thanks everyone!!