Michael Marshall and Cecil Cicirello break down Joe's June 2026 interview with science writer Rowan Jacobsen

Main
Sunscreen application does not prevent vitamin D production in the majority of people - https://www.bad.org.uk/sunscreen-application-does-not-prevent-vitamin-d-production-in-the-majority-of-people
The effect of sunscreen on vitamin D: a review - PubMed - https://pubmed.ncbi.nlm.nih.gov/30945275/
The effect of regular sunscreen use on vitamin D levels in an Australian population. Results of a randomized controlled trial - PubMed - https://pubmed.ncbi.nlm.nih.gov/7726582/
Meeting Vitamin D Requirements in White Caucasians at UK Latitudes: Providing a Choice - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC5946282/
Getting enough vitamin D? You need far less sun than you might think - https://news.cancerresearchuk.org/2018/08/06/getting-enough-vitamin-d-you-need-far-less-sun-than-you-might-think/
Colour Counts: Sunlight and Skin Type as Drivers of Vitamin D Deficiency at UK Latitudes - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC5946242/
How much sunshine do we really need? - https://www.bbc.co.uk/future/article/20260807-how-much-sunshine-do-we-really-need
Skin Cancer Concerns in People of Color: Risk Factors and Prevention - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC5454668/
Skin Cancer Across All Skin Tones: Risks By Race | SERO - https://treatcancer.com/blog/skin-cancer-by-skin-tone/
Are People of Color at Risk for Skin Cancer? - https://www.skincancer.org/blog/are-people-of-color-at-risk-for-skin-cancer/
Occupational differences in standardized mortality ratios for non‐melanotic skin cancer and melanoma in exposed areas among individuals with Fitzpatrick skin types III and IV - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC6499352/
New data on skin cancer in the horticulture workforce - The Institute of Chartered Foresters - https://charteredforesters.org/new-data-on-skin-cancer-in-the-horticulture-workforce
Reexamining the Link Between Occupational Sun Exposure and Melanoma | Dermatology Times - https://www.dermatologytimes.com/view/reexamining-the-link-between-occupational-sun-exposure-and-melanoma
Occupational solar ultraviolet radiation and incidence of non-melanoma skin cancer in a nationwide cohort - ScienceDirect - https://www.sciencedirect.com/science/article/pii/S0269749125016495
Should you wear sunscreen when driving? Car windows fall short on UV protection, study says - https://preventcancer.org/article/wear-sunscreen-when-driving/
An ingredient used to fry your food is making its way into sunscreen | USA Today - https://eu.usatoday.com/story/life/health-wellness/2026/06/18/dermatologists-have-beef-with-beef-tallow-sunscreen/90571527007/

Toolbox
The effect of sunscreen on vitamin D: a review - PubMed - https://pubmed.ncbi.nlm.nih.gov/30945275/
The effect of regular sunscreen use on vitamin D levels in an Australian population. Results of a randomized controlled trial - PubMed - https://pubmed.ncbi.nlm.nih.gov/7726582/
Vitamin D - https://www.aad.org/media/stats-vitamin-d