Symptoms of B12 deficiency may include: Depression Fatigue Trouble concentrating Confusion Memory problems Headaches Mood changes Vitamin B12 is essential for red blood cell production, so long-term deficiency can lead to anemia, which can cause fatigue, shortness of breath, and an irregular heartbeat
To try to visually grasp why the differences happen, heres a good chart from George Kellys work, titled On the synthesis of coenzyme forms of B12: So, which is the best type of B12
The methylcobalamin form in particular shows nerve-repairing properties, and has been shown to reduce homocysteine levels, treat peripheral neuropathy, ALS, multiple sclerosis, Alzheimer, Bells palsy, and other neurological disorders
Multiple treatment sessions may be required to achieve optimal results, depending on the individuals needs