Low vitamin D was again associated with winter, females, obesity, smoking, sedentary – Aug 2019

Deficiency of Vitamin D category starts with the following__

• Overview Deficiency of vitamin D
• Many reasons why vitamin D deficiency has become epidemic
  •   23 of the 40 reasons are recent
• Many doctors continue to believe 2,000 IU of vitamin D is max (Hungary in this case)– Dec 2021
• 73 percent of US infants still do not even get 400 IU of Vitamin D - June 2020
• Vitamin D levels are dropping rapidly – what you need to do
• 4 Reasons why Vitamin D levels are crashing
  • Update Reasons for Low Vitamin D and what to do with a concise table
• Air Pollution reduces Vitamin D production - many studies
• Vitamin D levels in 56 countries (many have less than 20 ng) – 2021
• Trends in vitamin D status around the world – Nov 2021
• Vitamin deficiency in US military – Vitamin D is the most prevalent and is growing rapidly – June 2021
• Smoking reduces vitamin D - many studies 77 studies as of Feb 2024
• Low Vitamin D is worse for your health than smoking
• Many categories of people are at High Risk of low vitamin D - 67 studies
• 26 health factors increase the risk of COVID-19 – all are proxies for low vitamin D
• Diseases arising from depletion are cured by repletion - Hippocrates 400 BC

Women category starts with the following

• Vitamin D is indispensable for the health of women - editorial June 2022
• ALL of the top 10 health problems of women are associated with low vitamin D
  • Anxiety - Depression   Type 2 Diabetes   Dementia   Ischaemic Heart   Stroke   Breast Cancer   Lung Cancer   COPD   Asthma   Osteoarthritis
• Overview Women and Vitamin D
• Pregnancy category listing has 922 items along with related searches
  • Vitamin D is needed before, during and after Pregnancy – May 2022
  • Pretern Birth - 95 items as of Dec 2022
• Cancer - Breast category listing has 259 items along with related searches
  • Breast Cancer again associated with low vitamin D – 15th meta-analysis Sept 2020
• Fertility and sperm category listing has 142 items along with related searches
• Cancer - Ovarian category listing has 26 items along with related searches
• Calcium and Vitamin D category listing has 227 items along with related searches
  • Excessive Calcium supplementation is very bad for the body, and not needed by your bones
• Search for HRT OR "hormone replacement therapy" 301 items as of Jan 2019
• Poor menstrual cycles 2X more likely if poor vitamin D levels - many studies
• Fertility problem (PCOS) reduced by vitamin D, etc: many studies
• Yeast Infection and Vitamin D - many studies
• Bacterial vaginosis reduced 10 times by 2,000 IU of vitamin D – RCT June 2015
• Recurrent urinary tract infection 4X more likely if low vitamin D – Aug 2013
• Endometriosis treated, and perhaps prevented, by vitamin D - many studies
• Infant-Child category listing has 854 items along with related searches

Overview Dark Skin and Vitamin D contains the following summary

FACT - - People with dark skins have more health problems and higher mortality rate than those with light skins
FACT - - People with dark skins have low levels of vitamin D
FACT - - People with light skins who have low vitamin D have health problems
OBSERVATION - - The health problems of whites with low level of vitamin D are similar to those with dark skins
CONCLUSION - - People with dark skins have more health problems due to low levels of vitamin D
African American Health Disparities are associated with low Vitamin D - Grant Feb 2021
Low Vitamin D increases health problems - independent of skin color

Blacks die more often than whites of many diseases (they have less vitamin D) – 2012 contains the following summary
Cancer Facts & Figures for African Americans Cancer.org

• “African Americans have the highest death rate and shortest survival of any racial and ethnic group in the US for most cancers”
• Has a huge number of tables and charts, Note: Vitamin D is not mentioned

Leading Causes of Death as of March 2018

Rates per 100,000    Age adjusted   Non-Hispanic

13 reasons why many seniors need more vitamin D (both dose and level) - July 2023 has the following

1. Senior skin produces 4X less Vitamin D for the same sun intensity
2. Seniors have fewer vitamin D receptor genes as they age
   Receptors are needed to get Vitamin D in blood actually into the cells
3. Many other Vitamin D genes decrease with age
4. Since many gene activations are not detected by a blood test,
   more Vitamin D is often needed, especially by seniors
5. Seniors are indoors more than when they were younger
   not as agile, weaker muscles; frail, no longer enjoy hot temperatures
6. Seniors wear more clothing outdoors than when younger
   Seniors also are told to fear skin cancer & wrinkles
7. Seniors often take various drugs which end up reducing vitamin D
   Some reductions are not detected by a vitamin D test of the blood
   statins, chemotherapy, anti-depressants, blood pressure, beta-blockers, etc
8. Seniors often have one or more diseases that consume vitamin D
   osteoporosis, diabetes, Multiple Sclerosis, Cancer, ...
9. Seniors generally put on weight as they age - and a heavier body requires more vitamin D
10. Seniors often (40%) have fatty livers – which do not process vitamin D as well
11. Reduced stomach acid means less Magnesium is available to get vitamin D into the cells
12. Vitamin D is not as bioavailable in senior intestines
13. Seniors with poorly functioning kidneys do not process vitamin D as well
14. Glutathione (which increases Vitamin D getting to cells) decreases with age
       Seniors category has 431 items

Overview Obesity and Vitamin D contains the following summary

• FACT: People who are obese have less vitamin D in their blood
• FACT: Obese need a higher dose of vitamin D to get to the same level of vit D
• FACT: When obese people lose weight the vitamin D level in their blood increases
• FACT: Adding Calcium, perhaps in the form of fortified milk, often reduces weight
• FACT: 168 trials for vitamin D intervention of obesity as of Dec 2021
• FACT: Less weight gain by senior women with > 30 ng of vitamin D
• FACT: Dieters lost additional 5 lbs if vitamin D supplementation got them above 32 ng - RCT
• FACT: Obese lost 3X more weight by adding $10 of Vitamin D
• FACT: Those with darker skins were more likely to be obese Sept 2014
• OBSERVATION: Low Vitamin D while pregnancy ==> more obese child and adult
• OBSERVATION: Many mammals had evolved to add fat and vitamin D in the autumn
  • and lose both in the Spring - unfortunately humans have forgotten to lose the fat in the Spring
• SPECULATION: Low vitamin D might be one of the causes of obesity – several studies
• SUGGESTION: Probably need more than 4,000 IU to lose weight if very low on vitamin D due to
    risk factors such as overweight, age, dark skin, live far from equator,shut-in, etc.
• Obesity category has 442 items

See also: Weight loss and Vitamin D - many studies   Child Obesity and Vitamin D - many studies   Obesity, Virus, and Vitamin D - many studies
Obese need more Vitamin D

• Normal weight     Obese     (50 ng = 125 nanomole)

Click here for 2014 study

• Normal weight     Obese     (50 ng = 125 nanomole)