Injecting into fat instead of muscle reduces absorption, so the dose may not work as intended
This means they can't absorb B12 from food, though they can from a supplement
Early research published in esteemed journals, accessible through PubMed, revealed a remarkable phenomenon: older liver cells, when exposed to blood from younger subjects, began to function like their younger counterparts
Excessive Vitamin B12 May Increase the Risk of Lung and Colon Cancer A large-scale 2017 study published in the Journal of Clinical Oncology found that males who supplemented with megadoses of vitamins B6 and B12 had a 30% to 40% increased risk of lung cancer compared to individuals who did not supplement
The entire injection process takes less than 30 seconds, and any minor discomfort is over almost immediately
Alternatives to B12 Vitamin Shots and Dietary Supplements Several alternatives exist for those who prefer not to take injections to maintain adequate Vitamin B12 levels