lic acid deficiency
"I was tested for MTHFR genetic mutations after several years of fibromyalgia/chronic fatigue type symptoms. BINGO! I have compound heterozygous mutations. Which can cause whole host of health issues, many I have been experiencing since youth.  Once I started 7.5mg of Deplin with Methyl b12 my aches, brain fog, and unrelenting fatigue started to diminish..this is a life changer!"