Because it has to be proven to be effective against Covid. When you are a well known scientist/doctor, people will take your word as gospel because they trust you.Is there things to boost your immune system?
is there certain foods you can eat to boost your immune system?
certain exercises to strengthen you?
things and methods to clean your system?
if the answer is yes..why haven’t this info been pushed out there? Why aren’t they recommending things for people to strengthen their systems? If you going to battle it’s best to prepare for it.. we at war with a virus the least thing they could do is tell you ways to be at full strength or fighting mode in case you might get it
It is why they won’t push those things. Many probably in fact believe it would help. It is just they don’t have the data to back up the claims, which would be picked apart