Do you think my Hemo levels will go up with blood builders? Do they work well with other patients?

I am scheduled for surgery for January 2, 2014. I am getting bbl with liposculpture and breast reduction/lift. I started taking 2 Mega Food Blood Builder a day almost 2 weeks ago. Before that I was taking iron pills for all of a week, but it had me feeling bloated. My hemo levels were at 11.7 the last time I visited the doctors. Do you think my levels will go up with blood builders? Do they work well with other patients? Is it better just to take iron pills? I need my levels to be at 14 for sx.