How much B12

I'm taking the B12 Sublingual tablets. They are 1000 mgs. I take one once a day. Can you take too much B12? I was wondering about taking two a day. You know, one in the morning and one at night. But I don't know if that would be too much and I sure don't want to do that. Anybody out there know? Thanks

B-12 has no toxicity level.  You can take as much of it as you want.  (I take 1000 dose per day also.) 

I copied the following from the National Institute of Health's website on vitamins.  It pretty much says what I already said, that there is no UL (upper limit) on B12.  It is next to impossible to OD on it, especially if you can only absorb it passively (like us). 

What is the health risk of too much vitamin B₁₂?

The Institute of Medicine of the National Academies did not establish a UL for this vitamin because vitamin B₁₂ has a very low potential for toxicity. The IOM states that "no adverse effects have been associated with excess vitamin B₁₂ intake from food and supplements in healthy individuals" [7]. In fact, the IOM recommends that adults older than 50 years get most of their vitamin B₁₂ from vitamin supplements or fortified food because of the high incidence of impaired absorption in this age group of vitamin B₁₂ from foods that come from animals [7].

Thanks Wendy!! I appreciate the information. Good to know.