We all know that energized feeling from being exposed to bright sunlight and that depressed feeling on rainy days. The winter in many parts of the world presents a mental and physical challenge for some of its inhabitants. An estimated five to ten percent of the population suffers from Seasonal Affective Disorder (SAD) which is characterized by extreme fatigue, overeating especially of sugary foods and mental depression.
Vitamin D is called the “Sunshine Vitamin” since exposure of the skin to sunlight is required for its synthesis in the body. There is evidence that low Vitamin D3 levels in the winter may in part be responsible for SAD. Therefore, Vitamin D3 supplementation may be useful in fighting SAD.
What is Seasonal Affective Disorder (SAD)?
Seasonal Affective Disorder is characterized by:
craving for starchy and sugary foods
symptoms start in the fall and resolve in the spring