Despite this, cobalamin deficiency is common in vegans, occurring in up to half of such individuals who do not receive supplementation with vitamin B12 (132
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
Open Biology, 9 (8), 190126
Rest assured, severe allergic reactions are highly uncommon, and any discomfort or concerns you might be feeling are likely transitory
Color of Product Tirzepatide/Glycine/B12* is a light pinkish product due to the addition of B12