Some people are far more likely to run low on B12: Vegans and vegetarians, since B12 comes mainly from animal foods Older adults, because we absorb B12 less efficiently with age People with Crohn's, celiac, or other digestive conditions Anyone who has had gastric bypass or bowel surgery People taking metformin, antacids, or acid reducers long term Heavy alcohol users How B12 injections support weight loss Here is the honest version: B12 is not a fat-burning drug, and a shot will not melt away pounds on its own
Vitamin B12 injections are generally safe, but some people may experience side effects, such as pain, redness, or swelling at the injection site, mild headaches, dizziness, nausea, or itching
B12 deficiency can increase the risk of birth defects and may contribute to premature birth or miscarriage
Thats what the Harvard study found, too: High intake of vitamin B12 alone was not associated with increased fracture risk