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
Neil Peter Walsh on X: "Safe summer sun and winter oral vitamin D3 recommendations in our Exerc Immunol Review 2016 paper https://t.co/0wYrsmy1a3" / X
![The number of months of the 'vitamin D winter' within a selection of... | Download Scientific Diagram The number of months of the 'vitamin D winter' within a selection of... | Download Scientific Diagram](https://www.researchgate.net/publication/332961018/figure/fig2/AS:960038709493770@1605902473382/The-number-of-months-of-the-vitamin-D-winter-within-a-selection-of-European.png)
The number of months of the 'vitamin D winter' within a selection of... | Download Scientific Diagram
![Vitamin D - A Superstar for Winter Health Infection-Fighting Abilities For Colds and Flu — Cambridge Naturals Vitamin D - A Superstar for Winter Health Infection-Fighting Abilities For Colds and Flu — Cambridge Naturals](https://images.squarespace-cdn.com/content/v1/5366ed3ee4b0b47b799380bb/1420750200136-FZH70MV6V3Q817X3M0YS/image-asset.png)