r/B12_Deficiency

Title: Why am I concerned about my vitamin D and B12 despite eating well and exercising regularly?
I’m genuinely confused about this and would appreciate insights from people who’ve experienced something similar.
My diet includes:
3 whole eggs daily
Lots of milk, including high-protein milk
3 rotis made from high-protein atta (claims 46 g protein)
A 30 g protein bar
Other foods like rice, paneer and sabzi
I also work out regularly, walk often and do cardio. I’m not sedentary, and I try to maintain a reasonably healthy lifestyle.
My December 2025 blood results were:
Vitamin D: 44.4 ng/mL
Vitamin B12: 270 pg/mL
My vitamin D was in the sufficient range, but my B12 was toward the lower end of the lab range.
What confuses me is that I consume plenty of milk and eggs, exercise frequently, and generally eat a decent amount of food. Yet I still worry that something might be missing.
I usually sleep around 4–6 AM, although I try to get enough total sleep. I’m wondering whether my sleep timing, limited sunlight exposure, nutrient absorption, or something else could be relevant.
How can people with seemingly worse diets have better vitamin levels, while someone who eats reasonably well and exercises regularly can still have concerns about theirs?
Has anyone been in a similar situation and figured out what was actually going on? Was it sunlight exposure, absorption, diet, or something else?
I’d appreciate personal experiences and evidence-based advice.

Ferritin 28

b12 250

i gave birth 5 months ago. shortly After I gave birth I was dizzy and tachycardic And felt like I was going to faint. After that I had like an internal desperate kind of buzz and headaches. A week later I took myself to hospital as I was sure there was something physically wrong. They took my blood said I was fine and sent me back. Since then I have been experiencing severe panic attacks, headaches, loss of motivation, no energy, extremely tired, feeling sick and sometimes an overwhelming feeling like I’m going to die or I’m literally losing my mind and going to go mad. i have been prescribed 3 different ssris since and although they helped to a degree with the panic attacks I am still feeling all the other symptoms. To the point I don’t want to be left alone in case something happens to me. I thought what I’m feeling could be side effects from the tablets. It’s got to the point where because I’ve tried 3 different ssris without full recovery my doctor has referred me to a psychiatrist. I’ve taken it upon myself to do a home blood test (legit one) and just got my results back. The doctor won’t give me a blood test.

ferritin 28

b12 250

could this have been the cause of this all along? are these common symptoms? are my results even considered low? I feel like I’m losing my mind and my life is so limited as all I do is sit on the sofa, I don’t have the capability of doing anything else.

What sleep issues did you notice when you were deficient?

I have pernicious anemia and have the same journey of confusion, lazy doctors, etc as I got sicker and sicker.

I was diagnosed with pernicious anemia in mid May and began injections. About 2 months prior to being diagnosed I started taking a b complex in hopes it would help me. It started my tremors and my severe derealization phase.

I now take a b complex to help me heal and it actually seems to help.

Is there any science as to why the b complex would make me feel worse when I was low in b12? Or is it all coincidence?

Thank you

I am feeling much better now and alot of your stories and advice have helped me.

You all are amazing!

Been feeling extremely exhausted and my doctor said this is not causing this AT ALL. And didn’t even recommend that I take any vitamins??? Idk what to believe because another doctor years ago told me that I need injections at this level. Idk feels off putting that I’ve been feeling exhausted and I see this level and think that this is my answer and they said no.

Can someone please clear this up for me??