Faster Results B12 injections provide faster results than oral supplements
This includes vegans and vegetarians, older adults, individuals with atrophic gastritis, pernicious anemia, gastrointestinal disorders, those who have had gastrointestinal surgery and people who take certain medications including, but not limited to, estrogen (HRT), and birth control pills
DDA, Data Dependent Analysis algorithm
Injections work faster, while supplements take longer but are more convenient and affordable
Theyre also helpful for people who dont get enough B12 from their diet (spoiler: often vegetarians and vegans) and for people whose guts cant break down and absorb the vitamin