I originally grabbed this prenatal because it was on sale buy one bottle get one free. However after using this brand and other brands this is the only brand that didn't make me feel sick. I did get sick a couple of times if I took the pill and didn't eat soon enough after, but I had that issue with other brands as well. I liked having everything I need for my pregnancy in one simple vitamin. I hate taking medicine and have a hard time remember so the fact it's just one makes it a lot easier on me. My doctor has also told me multiple times all my levels are great and that the vitamin is doing what it is supposed to do.