About David Letourneau

David Letourneau is the co-founder of Enyrgy Vitamin D Light Therapy and is committed to helping people have their Health Span match their Life Span. America has a Vitamin D deficiency crisis. 89.9% of the U.S. population has a deficient level of Vitamin D that can lead to the inconvenience of a cold or flu as well as the life-threatening issues that come with cancer, MS, Parkinsons and Alzheimer’s. There is an excellent solution for this problem and it's neither difficult nor excessively expensive to implement. How do we increase our Vitamin D? What is the range that is recommended? What are the benefits of getting our Vitamin D into the optimal range? David Letourneau will educate with plain language answers and explanations to all the important questions that should be asked about this critical subject. His entertaining stories and real-life examples are compelling for the curious listener that wants to increase their knowledge of the most important ingredient to better health.