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Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

Vitamin D Council podcast 13: Dr. Bruce Hollis

The thirteenth episode of the Vitamin D Council Podcast has arrived! You can listen to all previous episodes here.

You can download and listen to the episodes in these blog posts on our website. All episodes are also available on iTunes.

Here are the show notes for this episode:

In today’s episode, Dr. Cannell interviews Dr. Bruce Hollis, Director of Pediatric Nutritional Science and Professor of Pediatrics, Biochemistry and Molecular Biology at the Medical University of South Carolina, Charleston, SC. Dr. Hollis received his PhD in Nutritional Biochemistry at the University of Guelph, Guelph, Ontario, Canada. He participated in an endocrine fellowship at Case Western Reserve University from 1979-1982.

Dr. Hollis’s interest in vitamin D began as a student when he learned that despite the fact that human breastmilk is considered a complete balanced diet for the nursing infant, the lack of supply of vitamin D from deficient mother’s milk may result in infantile rickets. This realization inspired him to begin researching the role of vitamin D in maternal health.

Dr. Hollis has been researching vitamin D for over 35 years and has published well over 200 peer reviewed articles on a wide range of health outcomes.  The National Institute of Health provided Dr. Hollis with grants which enabled his team to determine the ideal vitamin D dosage for pregnant and breastfeeding mothers. Their team discovered that daily supplementation with 4,000 IU during pregnancy was required to reduce pregnancy and birth complications. Furthermore, they found that 6,400 IU taken on a daily basis while breastfeeding provided the infants with sufficient vitamin D status

In today’s episode, Dr. Hollis discusses the importance of vitamin D supplementation during pregnancy, the mechanism by which vitamin D acts on cells and provides an in depth explanation of vitamin D testing.


Bruce Hollis, PhD.







Dr. Bruce Hollis pregnancy outcome

One Response to Vitamin D Council podcast 13: Dr. Bruce Hollis

  1. Laura says:

    Here is the study by CC Gibson that dr. Hollis mentions

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