5: Sunny Vitamin D3

In which we discuss vitamins to sustain ourselves, fat-soluble and water-soluble, and the foods rich in certain vitamins. Then we take a deep-dive into Vitamin D3––the 7-dehydrocholesterol precursor, the UVB light required to synthesize it in our skin, dosage recommendations from the Institute of Medicine vs. the US Endocrine Society, health effects of not enough and too much. Finally, we talk a little about the biochemistry and testing methods. Stay for the haiku reading at the end! Felicia Etzkorn and Jamie Ferguson, with music written and performed by Wendy Godley.

Most of this information can be found on Wikipedia and the references therein.

US Endocrine Society Vitamin D Recommendations:

https://academic.oup.com/jcem/article/96/7/1911/2833671

Testing methods: https://www.mayocliniclabs.com/articles/vitamind/