Healthy vitamin D levels are not optional; get levels tested by your doctor to ensure that they hover between 40 and 60 ng/mL.
The Author of this Quote
![Max Lugavere](/_next/image?url=https%3A%2F%2Fassets.heroic.us%2Fauthors%2Fheadshots%2Fmax-lugavere.jpg&w=640&q=75)
Author
Max Lugavere
New York Times Bestselling author of GENIUS FOODS and THE GENIUS LIFE. Host of THE GENIUS LIFE podcast. Interested in health, performance & longevity.