Vitamin D: a pro-hormone
What’s the hype with Vitamin D??
First let’s start at the beginning.
Vitamin D is one of the fat soluble vitamin, others are Vitamin A, E & K. Vitamin D is actually a pro-hormone. As a pro-hormone it needs to be activated by sunlight or other sources of UV light. It goes through the liver (25-hydroxyvitamin D (25[OH]D) and kidney to make the active form (1,25-dihydroxyvitamin D (1,25[OH)2D), which is a steroid hormone.
2 Types of Vitamin D
- Vitamin D3, aka cholecalciferol - Found in fish, and a small amount in beef liver, egg yolk 
 
- Vitamin D2, aka ergocalciferol - Found in fungi 
 
Why is Vitamin D important?
- Enhances calcium and phosphorus absorption 
- Promotes bone strengthening 
- Supports neurotransmitter function 
- Support immune function 
- Enhance secretion of insulin 
Useful for
- Rickets (widely known to prevent and treat), weak & soft bones in children 
- Viral Infections 
- Bacterial Infections 
- Skin: Eczema, Vitiligo 
- Asthma 
- Burns 
- Cancer 
- Crohn’s 
- Cystic Fibrosis 
- Depression 
- Diabetes 
- Dysmenorrhea 
- Fatigue 
- Hearing loss 
- Parkinson’s disease 
- PCOS 
- SLE 
Risks for Vitamin D deficiency
- Low intake of Vitamin D in diet 
- Advanced age 
- Obesity 
- Dark skin 
- Living above 35 degrees latitude, around tall buildings 
- Pollution 
- Staying indoors 
- Sunscreen 
- Certain medications (laxatives, steroids, etc.) 
Ways to increase Vitamin D?
- Food 
- Sunlight, UV light 
- Supplements 
Signs of low vitamin D
- Frequently ill 
- Fatigue 
- Depression 
- Hair loss 
- Joint & muscle pain 
How to test for Vitamin D?
A blood test can be done
- normal level >30 
- Optimal level 60-80 
Ways to increase Vitamin D?
- Food - fish, cod liver oil, egg yolk, beef liver 
- Sunlight or Redlight 20-30mins daily. Darker skin would need more time in the sun. Unfortunately air pollution has also affected the levels of Vitamin D absorption. 
- Supplement. Best is to eat your vitamin D with healthy fats for increased absorption 
Have you gotten your vitamin D levels checked?
Schedule an appointment and we can work together to bring your vitamin D to optimal levels!
