I have noticed that everyone with adrenal fatigue is vitamin d deficient. I think that can be this can be attributed to two reasons. The first being that most have there thyroid out and the second is is your adrenal gland is not functioning then your liver will be struggling.
The pathwath in the liver that makes vitamin d is the amino acid pathway.This is the pathway that gets clogged up with toxins and heavymetals which I believe most people with adrenal fatigue easily accumalate.This is why we all have low levels of vit d. That is why you can get your levels up but they will just drop back down again.
If you you would like to kickstart this pathway it produces bile so you can help it along with dandelion root, bitters, Same, selenium. mangenese,zinc and magnesium. Bile helps in the formation of cholestrol which is used in the formation of all your hormones. I have been supplementing with the above and my hair is much thicker which means my testosterone is getter much higher, my urine has returned to its preffered color, my stools have gone back to their right color, all which mean my liver is now functioning optimally. I need to do blooed tests next year to see the full resultss.