Vitamin B12 monitoring — anyone have experience?

TomTeleRx said:

A sustained drop to 1,100 or 1,200 calories reliably under-delivers a predictable set: B12, vitamin D, iron, folate, zinc and magnesium.

Iron studies on micronutrients — important especially for women:

My ferritin cratered at month 6 from reduced dietary intake. Iron bisglycinate 36mg with vitamin C brought it back up. Don't wait for anemia symptoms — test proactively.

One thing that is still open after Dr.NutriCornell’s answer:

What would you measure differently if you were starting again?

NicoleRaleigh said:

Iron studies on micronutrients — important especially for women: Marker Baseline Month 6 After Supplementation Ferritin 61 19 56 Iron 91 61 79 TIBC…

There is a second half to this that has not been said yet. The useful move here is to separate what is established from what is widely repeated. Those two sets overlap less than the confident tone of most write-ups suggests, and the second set is where nearly all the disagreement on this board comes from.

OP back with an update, since a thread like this is useless without one.

Update — I was wrong in the opening post, specifically about the direction. Correcting it here rather than editing it away.

Dr.AddMedPHL said:

The useful move here is to separate what is established from what is widely repeated.

True, and it depends on a baseline nobody has stated. Without knowing where someone started, the same number can be an excellent result or a disappointing one.