5 to 15 minutes
twice a week
When your shadow is shorter than your height
Spring, Summer and Fall
No vitamin D in winter sun
More skin color more sun time
30 minutes = 10,000 units of D
"We were born we evolved in sunlight"
Text, 'Sunshine 5 to 15 minutes twice a week'
Dr Michael F. Holick youtube.com/watch?v=2lRtx-4_FOY at 22:10
"So I typically recommend in Boston about 5 to 15 min. arm and legs a couple
of times a week followed by good sun protection..."
Text, 'When your shadow is shorter than your height'
Dr Reinhold Vieth youtube.com/watch?v=MIDWA9-cGdY at 31:06
"...if you want to make vitamin D in your skin look at your shadow, if it's shorter
than your height..."
Text, 'Spring, Summer and Fall'
at 38:00 Dr Michael F. Holick webtalkradio.net/2011/06/06/brain-body-breakthroughs-–-the-biggest-epidemic-the-world-has-ever-
"I typically recommend you can wear sun protection on your face it's the most sun exposed most
sun damage but our arms and legs in the summer spring and fall between the hours of 10 am and 3 pm
is very reasonable..."
Text, 'No vitamin D in winter sun'
Dr. Holick’s interview on WZLX, 1 May 2011 at 05:00 from http://drholick.com/hear-dr-holick/
"...in fact if you live above Atlanta Georgia about 32 degrees north latitude that's even the latitude
of Los Angeles you basically cannot make any vitamin d in your skin from November thru February..."
also by Chris Masterjohn http://www.westonaprice.org/fat-soluble-activators/seafood-to-sunshine
"...even in completely clear skies, synthesis of vitamin D in the skin is impossible for four months of the year in Boston,
Massachusetts and six months of the year in Edmonton, the capital of Alberta, Canada."
Text, 'More skin color more sun time'
Dr. Holick’s interview on WZLX, 1 May 2011 at 20:15 from http://drholick.com/hear-dr-holick/
"...African Americans need to be out 5 times to 10 times longer than a Caucasian person"
Text, '30 minutes = 10,000 units of D'
Chris Masterjohn http://www.westonaprice.org/fat-soluble-activators/seafood-to-sunshine
"Full-body exposure of pale skin to summer sunshine for 30 minutes without clothing or sunscreen
can result in the synthesis of between 10,000 and 20,000 IU of vitamin D"
Text, "We were born we evolved in sunlight"
Michael F. Holick, Ph.D. MD youtube.com/watch?v=Cq1t9WqOD-0 at 00:30