References: National Institutes of Health, Office of Dietary Supplements
How Does the Delivery Method Differ
The usual daily recommended amounts of methylcobalamin, vitamin B12 either through dietary intake or supplementation should be taken during pregnancy
But a huge number of meat eaters are also deficient and likely dont know it B12 is absorbed through the stomach, and our ability to assimilate it through the stomach wall decreases with age, as well as due to any stomach issues like IBS, Crohns, and Celiac Disease, and medications that impact the stomach like metformin, antacids, PPIs, and ibuprofen
Maintenance dose: After the loading course, most people have one injection every 2 to 3 months
None of these are exotic, which is exactly why training and a sterile setup matter