Non-Prescription Vitamin Supplement for Morning Sickness. Few women will forget the first moment they learned they were pregnant. Unfortunately, few will forget the first time they had to make a mad dash for the grocery store bathroom either. Those awful, unannounced waves of nausea can become so pronounced that they control your life. With B-natal, there is finally sweet relief. B-natal is available as a green apple flavored TheraPop or a cherry lozenge. With a little bit of sugar and a whole lot of Vitamin B6, B-natal works in mysterious ways. In fact, although Vitamin B6 has been recommended and used by doctors since the 1940s to alleviate morning sickness symptoms, no one understands how it works. We do know that Vitamin B6 is important at all stages in your life, and is an especially essential nutrient for a healthy pregnancy. It plays a vital role in the multiplication of cells, in the formation of body proteins, structural compounds, chemical transmitters, red blood cells and prostaglandins, and in maintaining hormonal balance.