However, supplements don't seem to help
Vagal tone has been suggested to be a sensitive marker of self-regulation and cognitive control and associated with the status of vitamin B 12 during pregnancy,38 and may be an important subjective measure of early risk identifier of child development
Its worth knowing that most B vitamin supplements far surpass the daily recommended dose, because your body absorbs much less of the vitamin when its taken by mouth, according to the National Institutes of Health (NIH)
Patients who are pregnant, breastfeeding, managing cancer-related concerns, taking certain medications, or dealing with complex medical conditions should speak with a qualified provider first.
European Association for the Study of the Liver (EASL), European Association for the Study of Diabetes (EASD), European Association for the Study of Obesity (EASO)
doi:10.1016/j.foodchem.2014.08.035