The nutritionist who called me was phenomenally fantastic. The replacement product thus far seems superior in quality to the first product I obtained and had experienced some leaks and stuck-together capsules. I am not sure if the result of my taking this supplement has improved my bodily systems as well as the ordering / prescribing doctor optimistically had hoped, nor do I know how many months it takes for an improvement to kick in that way. I would be honored to hear from the same nutritionist again and review plans since my daughter, studying nutrition, does not yet practice, so I cannot yet get all my answer in-house. I'm grateful that Zahler's products exist and thrilled with how the matter was handled.