B12 supports red blood cells, nerves, cognition
These include, (but not limited to) more physical energy, mental alertness and stamina for everyday tasks, improved sleeping patterns, feeling emotionally brighter/happier, better short-term memory, finding it easier to exercise and lose weight, less frequency in urination and improved bladder continence
Cyanocobalamin is the recommended form of vitamin B12 because it is the most stable, as well as economical, widely available and well researched
Difficulty withdrawing solution: The vial may have developed negative pressure
Fatigue clusters in the first weeks and during the fastest-loss period, when food intake is lowest