it isnt unusual for those with B12 deficiency to be anemic for this reason

,for, Item ID- #1012964 Hikma Pharmaceuticals USA #00143962125 Cyanocobalamin 1,000 mcg / mL Injection 1 mL CYANOCOBALAMIN B12 1000MCG/ML1ML (25/CT) Features Generic Equivalent to Vitamin B-12 More Log in for pricing and availability Log In to Order or Product Specifications Features Generic Equivalent to Vitamin B-12 More Information Frequently Viewed Together ,for, Item ID- #226417 American Regent #00517013001 ,for, Item ID- #462548 American Regent #00517003125 ,for, Item ID- #1120326 Amneal Pharmaceuticals LLC #70121104902 ,for, Item ID- #1246630 Piramal Critical Care #66794022841 ,for, Item ID- #1222449 International Medication Systems #76329331801 ,for, Item ID- #1227965 Meitheal Pharmaceuticals #71288020185 ,for, Item ID- #550541 Fresenius USA #63323016501 ,for, Item ID- #1200636 Xiromed LLC #70700017223 ,for, Item ID- #501703 Fresenius USA #63323042410 ,for, Item ID- #1091140 American Regent #00517671010 ,for, Item ID- #479124 Fresenius USA #63323011710 ,for, Item ID- #805389 Hikma Pharmaceuticals USA #00143978310 ,for, Item ID- #1246640 Piramal Critical Care #66794022941 ,for, Item ID- #1235270 Pfizer #00409318910 ,for, Item ID- #521371 Mylan Pharmaceuticals #67457014630 ,for, Item ID- #1261281 Meitheal Pharmaceuticals #71288041404

Its like giving your body a map to find and use the fat for extra fuel
Methylcobalamin may be better for those with impaired kidney function
That said, the components, the vitamins themselves, are well studied, and compounders must adhere to strict quality standards
Because injections bypass the digestive system, they provide a more direct and effective way to correct deficiencies, improve energy production, and restore mental clarity