The Best Way to Test for Vitamin B12 Deficiency A diagnosis of B12 deficiency should not be dismissed based solely on a single measurement
Sterile, multi-dose Pfizer vial with 0.9% benzyl alcohol
Foods high in B12 include fish, meat, poultry, eggs, dairy produce, and foods that are fortified with B12 (like some breakfast cereals.) If you follow a restrictive diet or have a condition that impacts absorption, you could be at risk for a B12 deficiency
Vitamin B12 oral forms are available without a prescription
The FDA approval process isn't bureaucratic red tape, it's patient safety infrastructure
Two weeks Some individuals notice ongoing progress if their deficiency is mild