MTHFR lifestyle, MTHFR mutation, Uncategorized Energy, MTHFR, and Fatigue. MTHFR has its sticky little fingers in everything important and energy production is no exception. In fact, fatigue is one of the most common symptoms that I see in my MTHFR clients. Truth be told, it’s one of the most… Share with friends:Amy NeuzilSeptember 27, 2020