I find those commercials weird and uncomfortable. They really don't need those on while kids likely to see them. Thankfully I have not yet been asked what Viagra is.
Yes it is very normal. See if maybe you can get him to eat a small jar of baby food fruit mixed in with his oatmeal to be sure he's getting vitamin C and such. If he likes spaghetti try mixing in baby food veggies into the sauce so he's getting enough veggies. My sister also mixes them into her...