B12 occurs naturally in animal foods such as meat, poultry, eggs, fish, and dairy, and it is added to various fortified products like certain plant milks, cereals, and nutrition drinks
Additionally, in measure testing the developer examined differences in measure score by patients' payer type composition (that is, proportion of patients with Medicaid, proportion of patients with Private/Other, and proportion of patients with Medicare) and found the strength of the relationship was weak to moderate and not statistically significant across all three of these compositional characteristics
Lee HJ, Stefan-Lifshitz M, Li CW, Tomer Y
Wei, E., Gao, W
B12 Shots aren't directly associated with weight loss
Delivered faster than expected