Yes, you should be getting 1000 mcgs of B-12. Even more if your body is not absorbing it well. There are blood tests to determine the levels of all of the substances you need for brain health. B-12, folate, D3, magnesium, calcium, other trace minerals and trace metals can all be tested with a blood test. You need to be at the upper end of the normal range for each.

You need to understand the traditional medicine concepts are way behind the curve on nutrition for healing.

I take 19 pieces of supplements each morning plus my meds.

Dmom has expertise with nutritional absorption. She may chime in with her comments.