By Julia MacPhee C.H.N.C., Pn1,
FitNutrition Consulting. www.Fitnutrition.ca
Vitamin D is often referred to as “the sunshine vitamin” because the sun is one of the best sources of this nutrient. Vitamin D is formed by the body in response to the action of sunlight on the skin with help of a cholesterol compound in the skin
Vitamin D is known to enhance immunity, it is necessary for proper thyroid function and better mood. It is especially important in development of strong bones, because Vitamin D is required for proper absorption of Calcium and Phosphorus into bone tissue. Vitamin D protects from muscle weakness, and is involved in regulation of heartbeat.
However, in Canadian climate it is often difficult to achieve adequate amounts of Vitamin D from sunlight alone. Therefore, supplementation is highly recommended. 
Good sources of vitamin D in foods are:
Fortified dairy products (if tolerated)
Eggs- choose organic, free run eggs where possible
Grass-fed butter
Wild caught Salmon or other fatty fish, such as mackerel
