These shots are typically quick and easy to administer, and they can benefit individuals who have difficulty absorbing B12 from food or supplements
[12] Most recipients experience no systemic symptoms
Reported symptoms include headache, nausea, diarrhea, facial flushing, and in rare cases, skin rash or tingling
Enhanced Cognitive Function: Regular B12 supplementation may help prevent cognitive decline
What that means isnt always straightforward: In the Swiss study mentioned above, nearly three-quarters of primary-care docs surveyed reported using a multi-step approach (and not always the same one) when testing for B12 deficiencya practice that Miller says improves the odds of an accurate diagnosis since serum B12 levels alone dont always accurately identify a deficiency
B12 deficiency can lead to weakness and fatiguetwo culprits that often keep people from sticking to their diet and exercise plans