Is 1000 mcg b12 safe?

Related questions

1. What happens if you are deficient in b12?
2. Can I take 1000 mcg of b12 a day?
3. What are the symptoms of high vitamin b12 levels?
4. Is b12 really necessary?
5. What happens if your vitamin b12 is too high?
6. Do bananas have b12?
7. Is it OK to take 1000 mcg of b12 a day?
8. How dangerous is b12 deficiency?
9. What is the use of cyanocobalamin?
10. Is a b12 level of 300 normal?

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14. #relatively
15. #maximum
16. #because
17. #amount
18. #level
19. #tolerable
20. #people
21. #doses
22. #safely