Methylcobalamin is a form of activated (biologically active) vitamin B12 which means it is already in its natural physiologically usable form.
Symptoms of vitamin B12 deficiency:
- Fatgiue.
- Depression.
- Chronic fatigue syndrome.
- "Foggy brain."
- Peripheral neuropathy.
- Neural pathologies.
Source: Injectable Nutrients, by Dr Karel Hromek.
