is 500mg l carnitine enough PROTOCOL FOR LIFE BALANCE L-Carnitine - Cell Energy Metabolism - Exercise Performance, Recovery L-Carnitine: Benefits, Side Effects, And

Dietary B12 found in food is bound to binding proteins, from which it is released in the stomach by pepsin and the acidity of secreted hydrochloric acid

Lee, K., Kerner, J

3.5 Chronic fatigue syndrome (CFS) A growing body of clinical evidence shows that the gut microbiota plays a critical role in CFS, with consistently observed reductions in butyrate-producing bacteria and enrichment of Enterobacteriaceae , together with frequent depletion of anti-inflammatory taxa such as Faecalibacterium (Knig et al., 2021

The underlying mechanism is linked to heightened oxidative stress, as indicated by elevated levels of ROS and MDA, alongside decreased concentrations of SOD and GPx in the brain