Vitamin A Functions in the Regulation of the Dopaminergic System in the Brain and Pituitary Gland

[Gigi216]

onlinelibrary.wiley.com/doi...

[mrvl]

here are the basics:

the body will make your A from the available beta carotene in ratio to the D and K floating around but the A is only produced to a physiological limit and no more. Think of it as prothrombin time vs K1 intake- -- -the more K1 you take your prothrombin time levels off.

Here is the kicker, everyone is way different especially those folks who have A genetic issues.

so if you are taking D and K and wonder if your A is "right" just look at your beta carotene levels and if they are in the normal range you are just fine. Yes, at the same time take an A test and over a couple of years you get an understanding of your ratio.

one also needs to be clear on another topic and that is the term fat soluble. A has its own carrier protein as does D. Fetuin-A is the carrier protein for Calcium. folks don’t talk about that all that often and LDL, HDL, and VLDL carry the rest - - the Ks, CoQ10, Es,

"fat soluble" is used basically as a sloppy catch all phrase like "inflammation" and "its genetic"

don’t you just love physiology

[Gigi216 in reply to mrvl]

Thank you for that deeper understanding of Vitamin A!

[Gigi216 in reply to mrvl]

Also if you have hypothyroidism you can’t convert as well from beta carotene