I was taking a store brand prenatal with an additional DHA and folic acid supplement (so I was getting what the daily recommendation was) and was feeling just fine. My doctor wrote me a script for a prescription prenatal to start taking once the OTC ones ran out. I've only been taking this one for 3 days...but I HATE it. It's making me so nauseous (I've tried taking it at various times of day)...so I'm thinking prescription is not always better. Bleh. Feeling like garbage.