How common is b12 deficiency?

How much vitamin B12 do you NEED per day to overcome B12 deficiency?

• How much vitamin B12 do you NEED per day to overcome B12 deficiency? I only want to know the minimum amount you'd need to overcome a deficiency of this vitamin. I know many people decide to take 1000mcg per day or more sometimes to overcome the deficiency but how much is actually absorbed? And roughly how many mcg of B12 can the body hold? How long does it take to synthesize cyanocobalamin once taken if your body was able to absorb it in tablet form? ] Thanks

• Answer:

  These are questions only your doctor can possibly answer without seeing your blood tests,etc. Do you know if you are deficit in Vit B12. This is the vitamin needed to tread Pernicious anemia. (The condition my Mother had in 1910 and had to eat sandwiches of raw liver!!) I always take a very good multi vitamin and mineral supplement.