Potential consequences of vitamin B12 can vary and requires diagnosis by a medical health care provider and include (11, 13, 14): Fatigue and weakness: Vitamin B12 is essential for energy metabolism, and deficiency can result in fatigue, weakness, and lethargy due to impaired production of red blood cells and energy
They support your livers ability to process fats and convert them into usable energy
In those cases, injections help restore balance so the body can function as intended
3 Because of extensive hepatic stores of vitamin B 12 , there may be a five- to 10-year delay between the onset of deficiency and the appearance of clinical symptoms
A small percentage of users report sleep disturbances with evening dosing, possibly related to nitric oxide system effects
However, a negative result should be published too