There are a few other groups that need to take more vitamin B12, usually as a supplement, to avoid deficiency
Rarely reported symptoms associated with excessive B12 intake may include: Skin reactions : Acne-like eruptions or rosacea-type dermatitis have been occasionally reported, particularly with high-dose intramuscular injections Gastrointestinal disturbance : Mild nausea, diarrhoea, or abdominal discomfort, though these are uncommon Headache : Infrequent reports of headaches following parenteral B12 administration Hypersensitivity reactions : In very rare cases, allergic reactions to injectable B12 preparations have been documented It is crucial to note that there is no established link between standard B12 supplementation and serious adverse effects
According to Heber, the only reason to take extra B12and it doesnt have to be injected
That 2kg difference is real but not dramatic
In other words, you get B12 at the same rate you use it
How to prevent vitamin B12 deficiency Vitamin B12 deficiency due to diet is rare in the U.S
