2013 Feb 1;9(1):33-54
Superoxide dismutase (Cu/Zn-SOD): Copper is a component of the Cu/Zn-SOD antioxidant enzyme that protects cells from superoxide radical damage
If left untreated, this can lead to symptoms such as fatigue, weakness, and neurological concerns
B12 (typically cyanocobalamin or methylcobalamin) is placed directly into the muscle, so it is reliably absorbed into the bloodstream and carried to the cells that need it
Treatment should not be delayed if neurological symptoms occur, as nerve damage may become irreversible without prompt B12 replacement
Conversely, some studies show that a deficiency in vitamin B12 may cause appetite loss, potentially leading to weight loss if left untreated ( If youre low or deficient in B12, your healthcare provider will likely recommend oral vitamin B12 supplements or injections to increase your blood levels ( summary Low levels of vitamin B12 can cause megaloblastic anemia, which is characterized by shortness of breath, headaches, and fatigue