![Frontiers | Latitude, Vitamin D, Melatonin, and Gut Microbiota Act in Concert to Initiate Multiple Sclerosis: A New Mechanistic Pathway Frontiers | Latitude, Vitamin D, Melatonin, and Gut Microbiota Act in Concert to Initiate Multiple Sclerosis: A New Mechanistic Pathway](https://www.frontiersin.org/files/Articles/411546/fimmu-09-02484-HTML/image_m/fimmu-09-02484-g001.jpg)
Frontiers | Latitude, Vitamin D, Melatonin, and Gut Microbiota Act in Concert to Initiate Multiple Sclerosis: A New Mechanistic Pathway
Neil Peter Walsh on Twitter: "Safe summer sun and winter oral vitamin D3 recommendations in our Exerc Immunol Review 2016 paper https://t.co/0wYrsmy1a3" / Twitter
Dr Steven Lin - In the Northern hemisphere as Winter approaches, in most places, you will produce no vitamin D from the sun. If you live above 37 degrees north or south
![Nutrients | Free Full-Text | Seasonal Changes in Vitamin D-Effective UVB Availability in Europe and Associations with Population Serum 25-Hydroxyvitamin D Nutrients | Free Full-Text | Seasonal Changes in Vitamin D-Effective UVB Availability in Europe and Associations with Population Serum 25-Hydroxyvitamin D](https://www.mdpi.com/nutrients/nutrients-08-00533/article_deploy/html/images/nutrients-08-00533-g001.png)
Nutrients | Free Full-Text | Seasonal Changes in Vitamin D-Effective UVB Availability in Europe and Associations with Population Serum 25-Hydroxyvitamin D
![Sports Performance Bulletin - Endurance health & lifestyle - Vitamin D and muscle function: the new frontier Sports Performance Bulletin - Endurance health & lifestyle - Vitamin D and muscle function: the new frontier](https://www.sportsperformancebulletin.com/AcuCustom/Sitename/DAM/087/68421-vitD-fig2.jpg)
Sports Performance Bulletin - Endurance health & lifestyle - Vitamin D and muscle function: the new frontier
![Autumn COVID-19 surge dates in Europe correlated to latitudes, not to temperature-humidity, pointing to vitamin D as contributing factor | Scientific Reports Autumn COVID-19 surge dates in Europe correlated to latitudes, not to temperature-humidity, pointing to vitamin D as contributing factor | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-81419-w/MediaObjects/41598_2021_81419_Fig1_HTML.png)
Autumn COVID-19 surge dates in Europe correlated to latitudes, not to temperature-humidity, pointing to vitamin D as contributing factor | Scientific Reports
Time in sun (in Spain) to get 4,000 IU of vitamin D: half hour in July , 2 hours in October – Sept 2016 | VitaminDWiki
![Estimated equivalency of vitamin D production from natural sun exposure versus oral vitamin D supplementation across seasons at two US latitudes - ScienceDirect Estimated equivalency of vitamin D production from natural sun exposure versus oral vitamin D supplementation across seasons at two US latitudes - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0190962209009487-gr2.jpg)
Estimated equivalency of vitamin D production from natural sun exposure versus oral vitamin D supplementation across seasons at two US latitudes - ScienceDirect
![Nutrients | Free Full-Text | Seasonal Changes in Vitamin D-Effective UVB Availability in Europe and Associations with Population Serum 25-Hydroxyvitamin D Nutrients | Free Full-Text | Seasonal Changes in Vitamin D-Effective UVB Availability in Europe and Associations with Population Serum 25-Hydroxyvitamin D](https://www.mdpi.com/nutrients/nutrients-08-00533/article_deploy/html/images/nutrients-08-00533-g003.png)
Nutrients | Free Full-Text | Seasonal Changes in Vitamin D-Effective UVB Availability in Europe and Associations with Population Serum 25-Hydroxyvitamin D
![PDF] Influence of season and latitude on the cutaneous synthesis of vitamin D3: exposure to winter sunlight in Boston and Edmonton will not promote vitamin D3 synthesis in human skin. | Semantic PDF] Influence of season and latitude on the cutaneous synthesis of vitamin D3: exposure to winter sunlight in Boston and Edmonton will not promote vitamin D3 synthesis in human skin. | Semantic](https://d3i71xaburhd42.cloudfront.net/32e23168b50cac2e5aceaf21c0a801e8bf8d41c7/3-Figure3-1.png)