Standard cognitive protocol
Small handling mistakes may cause large public health consequences later
Many people seek B12 injections for persistent fatigue or weakness
2017 105(5):1122-1131 Strand etal, The effect of vitamin B12 supplementation in Nepalese infants...Trials, 2017: 187 Thomas S, Thomas T, Bosch RJ, Ramthal A, Bellinger DC, Kurpad AV, Duggan CP, Srinivasan K
More serious deficiencies have the potential to impair heart and neurological function, leading to a wide range of serious symptoms, including but not limited to tinnitus, severe joint pain, memory problems, depression, anxiety, poor muscle function, ataxia and changes in reflexes