My doctor recommended this as a protection against short term memory loss and dementia. She monitored my labs. At first, I took 2 a day, After a few months, she has adjusted my dose to one a day. Time will tell.
This brand works well for me. Improved clarity of thought and improved eyesight within just a few hours of first dose. My therapist advised that anyone over 40 should consider taking this daily. I'm 59 and she was right.