If not, the nurse advised me to use one needle to draw the cobalamin from the ampule, then use a fresh one to inject
Lower Circulating B12 Is Associated with Higher Obesity and Insulin Resistance during Pregnancy in a Non-Diabetic White British Population Low serum vitamin B-12 and folate concentrations and low thiamin and riboflavin intakes are inversely associated with greater adiposity in Mexican American children Serum concentrations of vitamin B-12 and folate were inversely associated with BMI

When it was recognized that pellagra, a condition marked by diarrhea, dermatitis, dementia, and mortality, could be treated with foods containing NAD+ precursors, particularly vitamin B3, the clinical significance of maintaining NAD+ levels was established in the early 1900s (9). Notably, the skin does not flush with NAD+ injection, in contrast to vitamin B3 (niacin) intake, which also causes this negative effect (10). Low NAD+ levels have recently been associated with a variety of age-related ailments and diseases linked to increased oxidative/free radical damage, including diabetes, heart disease, vascular dysfunction, ischemic brain injury, Alzheimers disease, and vision loss (8, 11-17)
counsel patients on pacing meals, eating slowly, and avoiding high-fat trigger foods
2019;17(11):2212-2217.e1