Cholesterol is needed to produce both Vitamin D and Cortisol

Wikipedia – Cortisol

• It is released in response to stress
• It is synthesized from cholesterol
• It suppresses the immune system by "muting" the white blood cells
• It also decreases bone formation

The role of vitamin D deficiency in thyroid disorders Healthy Skeptic Aug 2010

When the body is in an active stress response, most of the cholesterol is used to make cortisol and not enough is left over for vitamin D production.

Hypothesis: High stress results in

• Increased Cortisol
  • Reduced immune system and
  • Reduced Cholesterol
    • Reduced Vitamin D production from skin and bio-availability from gut (see reference below)
      • Reduced Immune System (for a second reason)

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See also VitaminDWiki

• All items in Cholesterol and Vitamin D 52 items
• Vitamin D bioavailability is associated with cholesterol – Jan 2011
• Overview Cholesterol and Vitamin D
• Search VitaminDWiki for Cortisol 493 items as of Oct 2018