Good advice. My doctor yelled at me once for upping my recommended dose from 2000 IU to 5000 IU daily. Said it was way too much. Been taking 2000 IU for many years now and always had good bloodwork.
I do get a lot of sunshine when I can and rarely use sunscreen (pick your poison!). There are also a few foods that supply good amounts of Vitamin D that I eat in abundance. Not because they have Vitamin D but because they taste so good! Those foods are salmon, sardines, mushrooms and eggs.
SOME people need a lot of Vitamin D3 supplementation... (me)...but ALL people need to be tested....Medicare/Govt would probably save a lot of $$ if they paid for testing...imho