I know I am sooooo late answering your question. I have had my vitamin D checked & it was quite low. I agree that there are so many complex issues that make these diseases such enigmas!! Hope you are feeling well
this is a theory someone put up on vitamin D, folate and skin color. it kind of falls into the question you asked
have you have your vitamin D checked? I am very low. I dont now why but my folate and cacium are high I would guess because I am no absorbing them. poor vitamin absorbtion is only one key to the complex mess that leads to these illnesses. it fits into metabolic disarray however.
Haven't seen you post in a while. Just checking in hoping that you are doing well. Also hoping that your Christmas was filled with joy and that your New Year is filled with love!