One study, for instance, notes that people who are overweight or obese appear to have lower levels of vitamin B12 than those with a body mass index (BMI) that falls within the range considered to be normal. People who took vitamin B12 supplements of their own volition gained between 2.5 and 17 fewer pounds (1.27.7 kg) over ten years compared to those who did not take any form of supplementation with this vitamin
These ranges come from animal-data extrapolation and informal reports, not controlled human trials, and the two routes are not directly interchangeable
[47] Low vitamin concentrations in human milk occur in families with low socioeconomic status or low consumption of animal products
Vitamin B12 is crucial for maintaining healthy nerve cells, producing DNA, and forming red blood cells
AOD-9604 completed six human trials but did not demonstrate comparably strong efficacy
The injections are prescribed by a doctor and given intramuscularly (into a muscle)