Yes you can carry as much supplements or medication you need onto the plane in either your carry on luggage or checked baggage.
The airport does not limit the amount of medication or supplements you can bring onto the plane either in your carry on or the checked luggage.
It is always best to put your supplements or other medication in your carry on luggage in case your checked luggage gets lost.
I always keep my medications and supplements with me in my carry on luggage because I have had luggage lost before and it's never good to be without your medication when you need it.