Chronic Fatigue Syndrome: Diagnostic Criteria and Management Can CoQ10, L Carnitine, and B Vitamins Support Cellular Energy in Long COVID and ME CFS? RTHM If fatigue, brain fog, or crashes make everything feel harder, strengthening the basics can make a real difference. Supporting mitochondrial function is a core piece of many Long COVID and ME CFS treatment Carnitine HealthyPlace Endothelial dysfunction is common in both Long COVID and ME CFS and has been linked to symptoms like fatigue, chest pain, and brain fog. Research suggests that certain supplementslike L arginine, CoQ10, curcumin, and