Quote:
Originally Posted by jimbo2012
I was taking 2500's as a vegan, blood tested to high a level so cut back.
The only way to know is thru a blood test
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Thanks, Jimbo, I have been tested from time to time over the past eight years, and the result has always been good. I started out taking a 100 mcg. tablet. Eventually, I couldn't find the same 100 mcg. tablet anymore. So I bought a 500 and cut it in half. So I took 250 for a period of time figuring the extra amount wouldn't do any harm. The rest of the story is a little complicated to explain.
One of my blood tests indicated that I had a slightly slow thyroid. I suspected, among other things, that a B6 deficiency could have restricted the production of thyroxine. And I thought perhaps too much B12 might have caused it, as I now know from reading,
"Prolonged ingestion of large doses of one B vitamin can result in depletion of others." So I cut the 250 tablet in half and started taking a 125. Three months later another blood test indicated that my thyroid was normal.
But now my supply of 125 mcg tablets is running low and I want to find something better. I think 100 micrograms should be enough for me, especially due to the fact that the official recommendation is for 2.4 micrograms daily. And I want it to be the natural form: Methylcobalamin. I believe, from what I read, the synthetic might cause an eye problem. I will need to double check that.