Unfortunately, because boosting B12 levels through supplementation relies on good digestion, many people do poorly when taking B12 orally
Support for Hair, Skin, and Nails: As B12 contributes to cell reproduction, some individuals may notice improvements in the health and appearance of their hair, skin, and nails
A specific blood test referred to as the prostate-specific antigen is also common
doi: 10.1136/annrheumdis-2014-205809 307 CribbsAPTerlecki-ZaniewiczSPhilpottMBaardmanJAhernDLindowMet al
So, Anything to Worry About
A common analogy used in sports medicine: using only one is like fixing a roof leak from the inside without addressing the structural water damage on the ceiling