Vitamin A IMPORTANT for synthesis of adrenal and thyroid hormones

hey guys n gals :-)

I wanted to post this up here in case anyone has forgotten about the importance of vitamin A for thyroid and adrenal health.

I've been recently researching this some more as i personally suffer with vitamin A deficiency, recently discovering at a gene level i don't convert carotene to retinol, which being a vegetarian most of my life, has resulted in this deficiency.

I'll post up more links and update this thread when i have more time but the studies done on deficiency of Vit A and the measured lower levels of Thyroid hormones (T3 and T4) coupled with lower cortisol production from the adrenals are really interesting.

I don't read often how Vitamin A should be important for an adrenal protocol - it's all about Vit C and B5 and glandulars.

Interestingly, studies on rats revealed a vit A deficient state - even just a mild state of deficiency resulted in a much lower level of cortisone production.

They found that the conversion from Pregnenolone to cortisol was impaired with Vit A deficiency. Intriguingly, conversion of cortisol from Progesterone did NOT affect cortisol levels, despite Vit A deficiency.


http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1264968/


Zinc is also important to include with Vit A for thyroid hormone production:

http://ajcn.nutrition.org/content/34/8/1489.abstract
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