Kelly.oconnor: Created

2025-05-07T21:37:53Z

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== What Does It Mean? ==
Vitamin D Deficiency occurs when the body does not have sufficient levels of vitamin D, a fat-soluble vitamin crucial for calcium absorption, immune function, and bone health. Low levels can lead to impaired bone mineralization, immune dysregulation, and increased risk for chronic diseases.

== How Did We Get There? ==

=== Root Causes: ===

* Lack of Sun Exposure – Insufficient UVB light reduces natural vitamin D synthesis.
* Poor Dietary Intake – Low consumption of vitamin D-rich foods such as fatty fish, dairy, and fortified products.
* Malabsorption Disorders – Conditions like celiac disease, Crohn’s disease, and leaky gut syndrome impair absorption.
* Obesity – Excess fat storage can reduce the bioavailability of vitamin D.
* Liver or Kidney Dysfunction – Impaired conversion of vitamin D to its active form.

=== Signs & Symptoms: ===

* Fatigue and muscle weakness
* Bone pain and increased fracture risk (osteomalacia, osteoporosis)
* Frequent infections and immune dysfunction
* Depression and mood disturbances
* Hair loss

== Lab Test Findings ==
{| class="wikitable"
|'''Lab Test Name'''
|'''Expected Change'''
|'''Optimal Range'''
|-
|Alkaline Phosphatase
|Increased
|45.00-100.00 IU/L
|-
|Vitamin D 25-Hydroxy
|Decreased
|50.00-90.00 pg/mL
|-
|Vitamin D 25-OH, D2
|Decreased
|45.00-65.00 ng/mL
|-
|Vitamin D 25-OH, D3
|Decreased
|45.00-65.00 ng/mL
|-
|Vitamin D 25-OH, Total
|Decreased
|45.00-65.00 ng/mL
|}

== How Do We Treat It? ==

=== Functional Medicine Approach: ===
Correcting vitamin D deficiency involves increasing dietary intake, optimizing absorption, and ensuring adequate sun exposure.

=== Supplement Protocol ===
{| class="wikitable"
|'''Supplement'''
|'''Function'''
|'''Dosage & Frequency'''
|-
|Vita-D
|Supports immune function, bone health, and calcium metabolism
|1 capsule with food, daily
|}

=== Additional Lifestyle Interventions: ===

* Sunlight Exposure: Aim for 15-30 minutes of direct sun exposure daily.
* Dietary Support: Increase intake of vitamin D-rich foods (fatty fish, eggs, dairy, fortified foods).
* Gut Health Optimization: Improve digestion and absorption with probiotics and gut-healing nutrients.
* Monitor Liver & Kidney Function: Ensure proper vitamin D metabolism and activation.

Vitamin D Deficiency - Revision history

Kelly.oconnor: Created