In this guide, we'll walk you through the complete results timeline hour by hour and week by week, explain exactly what shapes your personal response, compare shots to oral supplements, and show you what to expect when you visit us
These are access-pathway questions rather than therapeutic approval
Some people come in for regular maintenance shots, while others start more frequently to rebuild low levels before spacing visits out
However, one of the B12 deficiency signs is that hair loss becomes apparent faster
FAQs Why should I choose an injection over an OTC supplement
According to the NIH Office of Dietary Supplements, functional B12 deficiency is most commonly seen in patients with one or more of the following: Age over 50 stomach acid production declines with age, and stomach acid is required to free B12 from food PPI or H2 blocker use reflux medications suppress the acid needed for B12 absorption Metformin use, which interferes with B12 absorption directly Vegan or vegetarian diets B12 is found almost exclusively in animal products Gut conditions including celiac, IBS, SIBO, and Crohns MTHFR mutations that affect how B12 is metabolized once absorbed Heavy alcohol use The symptoms of low B12 are easy to dismiss: fatigue, brain fog, low mood, tingling in the hands or feet, weakness, and shortness of breath on mild exertion