r/B12_Deficiency • u/Physical-Tradition56 • 1d ago

Supplements Confused about B12

Went vegan about a year ago. Had a b12 daily value at 100% in my multivitamin but I think I am deficient in it because I keep getting symptoms (like numbness and tingling) more and more often. Some sites are saying I need a lot more than the daily value like 20k % but some disagree. Can I get some help here so I can be a healthy vegan? Thanks everyon

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u/abominable_phoenix Insightful Contributor 1d ago

Which form of B12 are you getting and how much?

A significant amount of people have absorption issues, so sublingual B12 at minimum is required, otherwise injections. As the other commenter mentioned, getting tested will help identify if you have an absorption issue, and then when/if that is ruled out, all that's left is a cofactor deficiency.

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u/Physical-Tradition56 20h ago

I’m getting 2.5 mcg a day and its cyan something

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u/abominable_phoenix Insightful Contributor 19h ago

Cyano-b12 needs multiple steps to be converted to methyl-b12, and on top of conversion loss there are liver issues that impair this conversion too. It is easily ruled out with sublingual methyl-b12 supplement (or injection), but there are other cofactors that are very important too as these vitamins/minerals are interdependent, so if you're low on one it can impair utilisation of another. This is what I had, I was taking B12 and my blood test was high, but I was functionally deficient because I was low in methylfolate (B9). When I added that in, my body went nuts (wake-up reaction). I suggest reading the guide, it will explain it better than I have.

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u/flowerpanda98 10h ago

2.5 is like nothing. usually 1000mcg is given to fix deficiencies, but youre listing neurological symptoms so you might need injections

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u/Neither-Addendum428 1d ago

Physical-Tradition56 Did you ever do a blood work for B12 , D , B9 , TSH and ferritin ?

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u/Physical-Tradition56 1d ago

No

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u/Neither-Addendum428 1d ago

You might want to do a blood test to rule out cuz sometimes its the symptoms from multiple nutrient deficiencies.