Aha!

It looks like you cannot absorb B12 from food, but can absorb from supplements. That is malabsorption, but not severe malabsorption. Malabsorption from food is probably the most common cause of deficiency (except in people who have been vegans for years and do not supplement). You probably could eat a steak at every meal and get NO B12.

If you malabsorb, but not severely, you would be getting lots of B12 from that 100 mcg dose. In fact, you would be getting more than a person who malabsorbs severely gets from a 1000 mcg dose.

If that is the case, that is probably why both your MMA and Hcy were normal. If one of those was high before your month of treatment, it is likely that your B12 was actually a lot lower than that first test result showed, and it has been coming up. It would be good to get it coming up faster.

It looks even more like you have an autoimmune problem. You and your family would be even more likely than many to have an autoimmune problem, since you originate in the part of the world you do, and since you have similar problems.

Also, it is likely that you and your family would benefit from lots of B12 and some enzymes. And it would be a very good idea if you all took at least 1000 mcg per day B12, because it is very possible that at least some of you will progress to severe B12 malabsorption, and if you do you will get nothing to nearly nothing out of the 100 mcg.

It is not necessary to show any sign of anemia when a B12 deficiency problem (and even iron problem) is present. That is why so many of us are not diagnosed as we should be.

rose