Your data will thank you for it
Side effects are uncommon but may include slight redness or soreness at the injection site
[DOI] [PubMed] [Google Scholar] [48].Koriyama H, Ikeda Y, Nakagami H
Chronic stress keeps mast cells in a primed, hyperactive state, making allergic reactions more frequent and severe
Vitamin B12 is a water-soluble vitamin essential for red blood cell formation, neurological function, and DNA synthesis Requirements vary by age: infants need 0.30.4 mcg daily, children 0.51.2 mcg, and lactating women 2.0 mcg Pernicious anaemia typically requires intramuscular injections of 1,000 mcg hydroxocobalamin, initially three times weekly then every 23 months Deficiency causes macrocytic anaemia and neurological symptoms including paraesthesia, balance problems, and cognitive changes that may become irreversible B12 is found almost exclusively in animal products
The Bottom Line B12 deficiency is common, underdiagnosed, and progressive