These reasons, while understandable from a procedural standpoint, can be clinically and emotionally detrimental to a patient with Pernicious Anemia who is symptomatic and in need of treatment
They include vitamins B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folic acid), and B12 (cobalamin)
For others, it may take several days or even a few weeks to experience the full effects, as your body gradually rebuilds its B12 stores and enhances red blood cell production
The truth is that oral supplements only deliver around 50% of their nutrient count into your body
Whole grains, legumes, fish, seafood, and meat are just a few examples