t really speak to your question of vitamins and minerals being directly linked to anxiety, but I do know that many people feel that the suppliments they take
help with their stress or at least,
help their body deal with it. It would take someone far more qualified than me to give you a difinitive answer about that. (Sorry!)
Since you are seeing a therapist, he/she should be able to answer these questions for you.
Let us know what you find out! There are many folks here who would be interested.