Overview Deficiency of vitamin D
FACT: Much of the world is now vitamin D deficient
OBSERVATION: There are many reasons that a person may be vitamin D deficient
11 of the reasons for the epidemic are new in the past 40 years, Example: Air Conditioning
OBSERVATION: The more reasons that apply to an individual, the more likely he is to be deficient (additive reasons)
FACT: Vitamin D Deficiency has been associated with many diseases
FACT: Vitamin D intake can be increased by supplements, injection, UV, and sun (very little by food) items
FACT: Adding vitamin D to diets has been proven E1 E2 in clinical trials to both PREVENT some and TREAT some diseases
OBSERVATION: Adding vitamin D (intervention) does PREVENT and TREAT additional diseases - more trials are underway
OBSERVATION: There are at least 10 ways to increase the response by the blood to vitamin D intake
Details at VitaminDWiki
Incidence of 22 health problems related to vitamin D have doubled in a decade many charts
Vitamin D levels have been crashing since 1995 (Polish Children, Elite Military, etc)
Concealing clothing resulted in only 8 ng vitamin D – Feb 2011
Vitamin D deficiency spares no body part – NE Asia – Jan 2013
- Diseases associated with Winter and the North are occurring in the Summer now that they can avoid the extreme summer heat with air conditioning
Vitamin D less than 22 ng in Greece half of the year– May 2011
Vitamin D insufficiency in UK youths – 37X more likely if dark skin – July 2011
Beijing extremely vitamin D deficient even in the fall: 10 ng – April 2013
#00F:93 %of US children had less than#F00:30 ngof vitamin D Oct 202190 % of Swiss men have less than 30 ng of vitamin D in the winter – Nov 2012
90 % of young health care professionals had less than 30 ng of vitamin D – Nov 2011
87 % of Tennessee general medicine patients had less than 32 ng of vitamin D – Jan 2011
#00F:86 %of US military has less than#F00:32 ngof Vitamin D – Dec 202082 % of Swedes did not have the recommended amount of vitamin D – Feb 2011
80 % of teens in Europe had less than 30 ng of vitamin D – Aug 2011
79 % of middle aged Americans had less than 32 ng of vitamin D – July 2010
70 % of Koreans in their twenties had less than 20ng of vitamin D – Dec 2010
50 % of Quebec kids had less than 20 ng of vitamin D – Milk and movement did not help – Mar 2011
42 % of US adults less than 20 ng of vitamin D and 82 % of blacks – Jan 2011
33 % of pre-teens in Tehran had less than5 ng of vitamin D – Feb 2011
30 % of US had less than 20 ng of vitamin D - CDC March 2011
Vitamin D could save More than 10,000 Canadian lives annually LEF
Teens increasingly indoors - especially if dark skin - July 2010
Ways to increase the amount of vitamin D you get from the sun
Review of Vitamin D Deficiencies in developing countries - Oct 2011
- Health problem frequency - 1997 = rates of occurrence of human health problems


Only half as many people had >30 ng of vitamin D 16 years later
Approximately 44% in 1988 and 22% by 2004

CLICK HERE for paper which has this chart: "Demographic Differences and Trends of Vitamin D Insufficiency in the US Population, 1988-2004"
Vitamin D Cure book by Dr Dowd's (pg 32-33) has one of the ways to make a vitamin D risk assessment
| Ethnic Background | dark skin 4, 5, 6 | 3 points |
| Body Mass Index | >30 | 3 points |
| Breast fed infant | 3 points | |
| Have fatigue | or muscle, bone, or joint paint | 2 points |
| Senior | older than 50 | 2 points |
| Live far from equator | more than 35 degrees | 2 points |
| Put sunscreen on before sunning | 8 SPF or more | 2 points |
| Rarely spend time outdoors | 11 AM to 4 PM | 2 points |
The vitamin D research indicates that the following factors should be added to Dr. Dowd's list
| Pregnant | improve Calcium availability | 2 points |
| Very far from equator | > 70 degrees | 1 point |
| Winter | 1 point | |
| Recent sunny vacation | -1 point | |
| Frequent use of tanning bed | If bed does produce UVB, not just UVA | -1point |
| High altitude | increases UV - Colorado | -1 point |
| Cloudy or smoggy | reduce UV | 2 points |
| Very obese | in addition to BMI > 30 | 1 point |
| Vegetarian | no fish and no supplements | 1 point |
| Medical condition which obstructs vitamin D | rickets, MS, gut, HIV, kidney, liver, thyroid.. | 3 points |
| Vitamin D depleting drugs] | 2 points | |
| Smoking | 1 point | |
| Avoid sun with extra clothing, umbrella | skin cancer concern, whiter skin, social reasons | 2 points |
| Medical problem related to D runs in family | Cancer, MS, Heart, Lupus, TB, etc. | 2 points |
Risk Assessment
| Low Risk | 0-2 points |
| High Risk | 3-5 points |
| Very high risk | 6-8 points |
| Extreme risk | 9+ points |
If you have a risk factor >2 see: Overview: How Much vitamin D

Text was extracted from graph July 2011 - for translation to other languages and to be read to the blind
{SPLIT(colsize=300|385|415)}
Indoors more (results from)
Fear of sun
Less muscle mass (vicious circle)
More video games, multi-media, computer
More people in office jobs
Low income (results in)
More TV (and entertainment systems)
Not afford supplements
Fast Foods and less Magnesium (and more polyunsaturated foods)
Cola Drinks which consume Calcium
GREEN text
=big change in last 40 years
Decreased D (results from)
Dark skin
Indoors more
Fast Foods
[https://www.VitaminDWiki.com/tiki-browsecategories.php?parentId=72&sort;mode=created_desc|Genes] items
Cola Drinks which uses up Calcium
Live at high latitude
Lactose intolerant or food is not fortified
Decreased UV due to ozone, smog, clouds, sunscreen items
Seniors get 1/3 as much vitamin D per minute in the sun
Weight-loss diets – typically deficient in micronutrients, Magnesium, etc.
Liver problems items
Vicious circles: (low D ==> disease ==> lower D)
Depression ==> alcoholism ==> liver problems items
Obesity a lot of vitamin D is stored in fat instead of being used
Obesity ==> Bariatric surgery ==> gut absorption problems
Less muscle mass ==> indoors more ==> decreased D
Many other diseases:
such as cancers, rickets, heart attack, lupus, psoriasis, depression; do not seem to have vicious circles other than the person not going outdoors as much
{SPLIT}
A similar cause and affect diagram for African-Americans - by Grant 2010

CLICK HERE for web page
Only a tiny number of Americans eat even the "minimum wage" of vitamin D
orange line indicates the Institute of Medicine Nov 2010 minimum recommendations
Note that this shows few Americans get at even 400 IU of Vitamin D
<5% of all females,
<10% of males
0% of females ages 14-31
0% of seniors (over age 71)

Percent of population with less than 20 ng of vitamin D has the following graph

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
Low levels of Vitamin D for 70,000 people in California 2007
click on chart for details

Vitamin D reduced so low that Victorian age diseases are returning has the following chart

Risk Factors for Vitamin D Deficiency
See also web
President Trump had a Vitamin D blood level of only 20 ng Jan 2018
- He has not had as much golf time after the Coronavirus hit the US, which probably lowers his level of vitamin D
I Have a Vitamin D Deficiency: Personal Stories, Advice, and Support Experience Project, 59 people as of Sept 2013
click on chart for details