Low on energy? You might have MTHFR which is a prevalent medical disorder preventing you from digesting and utilizing most if not all of the B Vitamin Complex. Myhealthstore recommends Thorne Methyl Guard Plus.

More details in the article below on this prevalent and new genetic disorder:

http://dramyneuzil.com/the-best-dose-of-methylfolate-for-mthfr-mutants/