Thanks for the query.
Yes zinc deficiency
is definitely associated with hair fall
Please take zinc supplements,
Apart from this you can also use minoxidil
Its a good treatment.
also use tab androanagen
Regarding food you can take any diet rich in protein.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.