See https://www.canada.ca/en/health-canada/services/sun-safety/sun-safety-basics.html https://www.canada.ca/en/health-canada/services/sun-safety/s... for one ex

See https://www.canada.ca/en/health-canada/services/sun-safety/sun-safety-basics.html https://www.canada.ca/en/health-canada/services/sun-safety/s... for one example of an official health authority advising people to zealously avoid sun exposure, with no mention whatever of vitamin D deficiency or other downsides of not getting any sun.