The classic symptoms of B12 deficiency are persistent fatigue, tingling or numbness in the hands and feet, problems with memory and concentration, mouth ulcers, a sore red tongue, and pale or yellow-tinged skin
Conversely, isoniazid and pyrazinamide (tuberculosis drugs) are structural analogs of niacin that can interfere with niacin metabolism, potentially precipitating pellagra in rare cases
Any Vitamin B12 that is not required by the body is excreted in the urine
Many urgent care centers, wellness clinics, and even pharmacies with in-house clinics offer B12 shots without an appointment
One study showed decreased levels in post-bariatric surgery patients, but this high-risk group had multiple confounding factors
It has taken the place of OZEMPIC globally a famous semaglutide by NovoNordisk