Roux-en-Y gastric bypass surgery (RYGB) but not sleeve gastric bypass surgery or gastric banding, increases the risk of vitamin B 12 deficiency and requires preventive post-operative treatment with either injected or high-dose oral supplementation
Diagnosis requires full blood count showing macrocytic anaemia, serum B12 measurement below 148 pmol/L, and intrinsic factor antibodies to confirm pernicious anaemia
If you don't like organ meats, your next best bet is clams
Ozempic injections are given under the skin in your thigh, abdomen, or upper arm
PubMed Kim, S.B., Kwon, D.R., Kwak, H., Shin, Y.B., Han, H.J., Lee, J.H., & Choi, S.H