Videos
Dr. Marc Sorenson
 
Dr. Marc Sorenson
What is the difference between vitamin D2 and vitamin D3?
Dr. Marc Sorenson
How can vitamin D affect depression?
Dr. Marc Sorenson
What is the proper level of vitamin D that Americans should be consuming on a daily basis?
Dr. Marc Sorenson
Are athletes more healthy because they play outdoors?
Dr. Marc Sorenson
What diseases are impacted by an increased level of vitamin D?
Dr. Marc Sorenson
Are African-Americans in great danger because of vitamin D deficiency?
Dr. Marc Sorenson
Why has the sun been made out to be our enemy?
Dr. Marc Sorenson
Vitamin D, how to get tested?