In this podcast, we’re going to talk about the critical roles of vitamin D and parathyroid hormone in helping to prevent autoimmune diseases. Many people with an autoimmune disease have had success with the Coimbra protocol, which involves taking high doses of vitamin D.
The Coimbra protocol checks parathyroid hormone levels produced by the parathyroid gland, which is intimately involved in calcium regulation. If you have low calcium, the parathyroid gland pulls calcium from your bones and distributes it into the blood. Vitamin D helps with the absorption of calcium by a factor of 20x!
Vitamin D resistance occurs when the body does not absorb vitamin D. You can have normal vitamin D levels in the blood yet still be deficient in vitamin D. Parathyroid hormone levels can tell you if that's happening.
If you are not getting enough vitamin D, you will have trouble with calcium absorption. The parathyroid gland will have to overcompensate to combat vitamin D resistance.
Usually, if you have high vitamin D, you’ll have low parathyroid hormone levels. Low vitamin D and high parathyroid hormone levels can signify vitamin D resistance.
If you have vitamin D resistance, the solution is to take more vitamin D! The Coimbra protocol involves adjusting vitamin D until the parathyroid hormone lowers to a low to normal level.
Vitamin D resistance is typically caused by a problem with vitamin D receptors or a genetic issue known as polymorphism.
Other barriers to vitamin D absorption include:
• Low sun exposure
• Darker skin complexions
• Old age
• High stress
• Location
• Air pollution
Pathogens have strategic methods of downgrading vitamin D receptors. Pathogens from tick bites can downgrade your receptors by a factor of 60x!
Cancer cells, especially those affecting the colon and bones, downgrade vitamin D receptors to survive. Heavy metals can also downgrade vitamin D receptors.
Magnesium and zinc can protect against high calcium levels in the blood, but your best defense is vitamin K2.
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