Sun is better than UV, which is better than Vitamin D

Sun is the best

• Vitamin D levels produced by the sun last longer than those produced by supplements
• Benefits to Multiple Sclerosis from Sun produced vitamin D are much better than those from supplements
• Sun also produces Nitric Oxide that helps many health problems - such as cardiovascular
• 5 Amazing Properties of Sunlight You've Never Heard About
• Benefits of sun are more than vitamin D – 2008
• The sun provides more health benefit than vitamin D – Dr. Lucas podcast – May 2015

UV is good too

• UV improves immune system without increasing vitamin D levels in male mice – Sept 2012
• UVB produced 8X more vitamin D as solar UV – July 2012 perhaps UV source is better if it has very little UVA
  

Start gradually with the sun/uv and minimize getting even a slight reddening of the skin the next day

• The sun only produces a useful amount of vitamin D when your shadow is shorter than you are.
• Might start the season with just a few minutes of noonday sun
• The more skin exposed, the more vitamin D you will get for the same amount of sun/uv time
• As vitamin D levels build up you are able to handle more time in the sun/uv without reddening

See also Vitamin D Life

• 20 cent vitamin D pill similar to 2 hours sunbathing at 60 degree latitude – RCT Aug 2013
• Overview Suntans melanoma and vitamin D
• Optimize vitamin D from the sun
• Sun and UV a meta-page
• No – 10 minutes per day of sun-UVB is NOT enough
• Increase your vitamin D from the sun by wearing a tan-through instead of standard shirt
  tan-through T shirt provides about as much vitamin D as wearing shorts