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Many reasons why vitamin D deficiency has become epidemic


For more information, see wiki page http://www.vitamindwiki.com/tiki-index.php?page_id=1586

19 of the 34 reasons for Vitamin D deficiency are new

People have gotten far less Vitamin D from the SUN in the past 40 years

  1. Air conditioning - to avoid the hot sun
    air conditioning in home, auto/bus/train, and workplace CLICK HERE
    Air Conditioning probably has decreased vitamin D
    Hypothesis – Air conditioning disease is the result of less vitamin D – China March 2011
  2. Increased use of multi-media indoors - TV, DVD, video games, and internet access
    Teens increasingly indoors - especially if have dark skin
    Vitamin D is essential to the modern indoor lifestyle
    Problems of increased TV watching by toddlers – May 2010
    Analysis of the time people spend outdoors – Dec 2010
  3. More indoor jobs - more office workers, fewer farmers
    Jobs in cities around the world: 30% in 1950, 70% in 2050
    4X more suburban UV than urban UV – Nov 2010
    Urban residents had 2X less vitamin D – 2008
  4. More people living in cities - where there is less UV and they have less opportunity to be outdoors
    Air pollution reduces UV and thus vitamin D
    UVB which produces vitamin D does not reflect off of buildings very well *
  5. Want whiter skin especially women
    Here and Here (Helen of Troy) and Being Fair-Skinned in Today's World
    Suntan: Popularity is fading
    Perhaps not burn from the sun if have enough vitamin D
  6. Fear skin cancer -
    Overview Suntans and melanoma  Tanning from Wikipedia
    Actually you can get enough vitamin D without getting much of a tan, much less get skin cancer
    Melanoma probability increased 2X if have 5 or more sunburns (Not necessarily at the same location as the burn)
    Most sunscreens increase the growth of skin cancer
    Actually you get 1000X more cancer by not having the vitamin D *
    Most sunscreens increase skin cancer - May 2010

    Additional reasons for less vitamin D in past 40 years (beyond lack of sun)
  7. Less cholesterol - which the skin needs to produce vitamin D
    Overview of Cholesterol and Vitamin D
    Vitamin D bioavailability is associated with cholesterol – Jan 2011
    Eating less cholesterol is harmless other than it reduces vitamin D – June 2011
  8. More Obesity
    Obese people need more vitamin D PDF file - 2000
    Map of BMI increase - Feb 2011 with many links
    Obese people spend less time in the sun
    Livers of those who are Obese do not function as well, and so do not provide as much vitamin D
  9. More soft drinks - uses up Calcium which uses up vitamin D
    surfers in Hawaii (PDF), who drank large amount of cola soft drink, had low levels of vitamin D
    Too much fructose reduced both serum and active vitamin D in rats – April 2013
    HFCS consumes Magnesium needed by Vitamin D
  10. Meat from factory farms - has far less vitamin D than from free-range farms
    eggs, chickens, sheep, pigs (500 IU/teaspoon of lard), farmed salmon has 4X less vitamin D than wild salmon
    Wild game, which has been outdoors all of the time, has much more vitamin D - especially in the organ meats
  11. Eating less fatty meat in an attempt to reduce cholesterol. fatty meat was discovered to have a liver-activated form of vitamin D in 2014
  12. More drugs which consume or block vitamin D
    Antiseizure, Prednisone, AIDS drugs, Orlistat, Questran, Dilatin, Phenobarbital, Rifampin, Steroids, Calcium channel blockers
    Cholestyramine, Mineral Oil, , St Johns wort
  13. More use of polyunsaturated fats decreased bio-availablity of vitamin D
  14. More windows: UVA from windows appears to destroy vitamin D (produced by UVB which is blocked by windows)
    More wall space devoted to windows in homes, offices, and public buildings
  15. Increased salt consumption which decreases essential cofactors of Magnesium and Calcium
  16. Fluoridated water decreases Magnesium essential for use of vitamin D - Hypothesis?
  17. Strong magnetic fields reduce vitamin D levels Perhaps from MRI
  18. PCBs increase the chance of deficiency by 3%
  19. Roundup (glyphosate) decreases vitamin D

    Reasons for low vitamin D levels which go back more than 40 years
  20. Less liver eaten - which used to have very large amounts of vitamin D
    A way to get 40X more vitamin D from beef liver back were it used to be
  21. Less Magnesium in foods - Magnesium is needed to utilize vitamin D (as well as build bones)
    Magnesium and vitamin D
    Magnesium deficiency epidemic is similar to the Vitamin D epidemic
    Reasons: use of artificial fertilizers, refining gains removes almost all of their Magnesium
  22. More seniors
    seniors get 4X less vitamin D from the sun than youths (less Cholesterol in skin) *
    more people are now living >50 years
    Seniors tend to be outdoors less+In vicious circle: low D makes for lower D
    Also: seniors appear to not activate vitamin D as well (in liver, kidney, skin, etc)
    More cataract surgery ==> avoid bright light
  23. Excessive clothing (burka, nun habit, . . .)
    especially if also living far from equator or avoiding the hot sun
  24. Have a condition which Consumes vitamin D
    Chemotherapy - (be careful, adding vitamin D increases the impact of some Chemo)
    MS prevented AND treated by vitamin D, a mountain of evidence
  25. Have a condition which Prevents Adsorption in the gut
    Bariatric Surgery, Colon Cancer, IBD UC and CD, Crohn's
    Gluten Intolerance, Celiac Disease, Cystic Fibrosis
    Fat malabsorption syndromes from 1985 PDF file
    (Supplement options if have gut problem: Option 1 - Option 2)
  26. Have a condition which Prevents Conversion to active vitamin D
    Kidney   vicious cycle
    HIV both prevents conversion and consumes vitamin D
  27. Have a condition which requires more vitamin D - or time in the sun
    Pregnancy Not just bone. Need lots of vitamin D - Before , During, and After
    Dark Skinned and living far from equator or avoiding the hot sun
    Surgery and trauma many files
  28. Lactose Intolerance or Vegan – and thus not get vitamin D from milk in US and a few other countries
    also reduces Calcium intake, needed to build bones, prevent Myopia, prevent cardiovascular disease
  29. Health reasons to avoid sun (other than skin cancer) burn easily - redhead, etc - there are alternatives
    If avoiding sun you need to supplement with vitamin D – April 2011
  30. Work long hours or night shift  Long hours reduced vitamin D by 8% – April 2011
  31. Live far from equator even more of a problem if the region is also cloudy (Washington State, Scotland)
    10X more SAD in Seattle than Miami
  32. DDT and some other pesticides in our bodies reduce the vitamin D perhaps 3 ng
  33. Smoking reduces Calcium, which reduces vitamin D
  34. Myths about vitamin D caused people and researchers to not consider useful amounts
    Myth You can easily take a toxic amount of vitamin D - started in the 1950's by a wrong diagnosis -scared off research and use for 50 years
    Myth Spend 10-15 minutes in the sun three times a week and your vitamin D will be fine. (This myth started out as a hypothesis)
    Myth Eat fish three times a week and your vitamin D will be adequate
    Myth Can get all of your vitamin D needs from food
    Myth Drink a cup of milk every day and your vitamin D will be okay
    Myth A daily multivitamin will meet your vitamin D needs
    Myth You do not develop vitamin D deficiency if you live in a warm, sunny place
    Myth Eating a healthy diet will take care of your vitamin D needs as well
    Myth More Kidney stones if take more vitamin D
    Myth Need lots of Calcium while getting lots of vitamin D ( just the opposite actually)
    Myth No tan is a safe tan (skin cancer can happen in just a few minutes)
    Myth If I sunburn easily I need to stay out of the sum ( No, being sunburned easily is often a sign of being very vitamin D deficient)
    Myth Should reduce cholesterol ( no, actually should increase cholesterol - to produce vitamin D)
    Myth Sunlight alone causes skin cancer (so why does melanoma often occur where the sun does not shine)
    Myth Can get enough vitamin D from the sun to last you thru the winter
    Myth Can get enough vitamin D even if wearing lots of sunscreen
    Myth You can be allergic to vitamin D (allergic reaction is often an indication of low Magnesium)
    Myth Vitamin D2 is almost as good as vitamin D3 (several studies have shown that vitamin D2 DECREASES serum levels of D3)
    See also ((Vitamin D - Facts and Myths)


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Lets look at vitamin D deficiency from another point of view

People were evolved under conditions which have since changed

  • People were outdoors everyday (so we could slowly adjust to the annual increase of UVB without sunburn)
  • The bright sun was available throughout the year (this assumes during the last 20,000 years that most people lived within 30 degrees of the equator)
  • That each person would not live very long (seniors get far less vitamin D from the sun than youth)
  • That people were not obese (obese people need at least 2X more vitamin D, which is secreted away in their fat)
    If there was any weight gain, it happened near harvest time when there was lots of vitamin D and that added weight/vitamin D was gone before the next harvest
  • People ate animals which lived out-of-doors, so there was lots of vitamin D in the meat, especially the organ meats
    Also, the animals generally ate green grass, etc. had lots of vitamin K2, which is a vitamin D cofactor

Much of the above information is in a chart, which also shows the vicious cycles

Low D ==> get a disease, which further reduces the vitamin D levels

Image

CLICK HERE for Overview Deficiency of vitamin D which contains the chart about


Some diseases associated with low vitamin D have had big increases in the past few decades

Autism

updated from http://autisminnb.blogspot.com/2011/01/autism-speaks-cdc-autism-prevalence.html

Diabetes

http://www.cdc.gov/diabetes/statistics/dmany/fig1.htm

Image

Gluten Intolerance increased 4X in past 50 years

  • one person said Gluten Intolerance increased 18X in a 10 years

Celiac disease has increased 4X in past 30 years

Increase in Obesity from International Union of Nutritional Sciences

from: http://www.iuns.org/features/obesity/obesity.htm

Obesity in US from WikiPedia

Image

Increase in Childhood Cancer in recent decades

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Decrease in cholesterol which the skin needs to make vitamin D in past 40 years

Image

Author  Thomas O.  Feb 2012

The perfect storm


see wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=2289

Some of the reasons in graphical format

 
 

A few new things INCREASE vitamin D levels

  1. Many statins increase vitamin D levels
  2. Oral contraceptive use associated with higher levels of vitamin D – thesis June 2012 but this idea is contested.

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See also VitaminDWiki

see wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=2533
Large % of people in many countries have less than 20 nanograms:
Australia 31, Canada 61, China 45, India 75, Korea 56, Malaysia 74, Middle East 90, Mongolia 98, New Zealand 56, North Africa 60, Northern Europe 92, United States 36

So many health problems due to less sun

Image

Short URL = http://is.gd/lowvitamind



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Health Problems and D

  # of studies as of 11/02/14