Can HCG Diet Affect Pituitary Macroadenoma?

I have had a pituitary macronoma found in 1989, I started the HCG diet about two weeks ago, and just had my prolactin level checked and it was 8. How could HCG diet effect my macronoma? And if my prolactin level stays low, can I safely do the diet? (does HCG diet even effect this?)