Also, sadly enough, there also are many types of (chronic) diseases that require B12 injections, such as Pernicious Anemia, people with Crohns, celiac, and people with intestinal imbalances, such as intestinal tapeworms and excessive bacterial growth
Your healthcare professional may prescribe B12 injections if you are suffering from low levels of the vitamin in your system
"New round of price slashing in vitamin B 12 sector (Fine and Specialty)"
Weill Cornell Medicine
Certain types of Leukemia, a cancer of the blood or bone marrow 4
Furthermore, this trend toward increased alpha diversity in the obese groups placed on an LD that had consequently experienced weight loss aligns with clinical observations, where low gene richness has been associated with increased adiposity, insulin resistance, and dyslipidemia 70 while increased gene richness has been observed following dietary intervention in obese and overweight individuals 71