![NutritionFacts.org Video Podcast show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/072/375/small/nutritionfacts-org-video-podcast.jpg)
Summary: The safe dose of vitamin D supplementation to get most of the population to the optimal level is 2,000 IU a day, but the elderly and overweight may need more.
Summary: The safe dose of vitamin D supplementation to get most of the population to the optimal level is 2,000 IU a day, but the elderly and overweight may need more.