To confirm the diagnosis, he or she will examine you and order laboratory tests
Certain health conditions such as intestinal or stomach problems, poor nutrition, cancer, HIV, pregnancy, old age, veganism and alcoholism can cause vitamin B12 deficiency
Are there any side effects of a Vitamin B12 Shot
Adams et al., Scand J Gastroenterol, 1971 NIH Office of Dietary Supplements, 2024 Allen et al., J Nutr, 2018 Some trivia: dietary B12 is protein-bound and needs digestion to release it before IF can grab it
Nitric oxide modulates NMDA receptor through a negative feedback mechanism and regulates the dynamical behavior of neuronal postsynaptic components
They can bolster your natural energy levels and balance mood cycles, countering the problems related to low B12 levels