Based on findings from Germany's ESTHER study, both men and women reveal a lower risk of dying from cardiovascular disease, cancer, respiratory disease or any cause in men and women with higher serum levels of vitamin D.
Reporting in the American Journal of Clinical Nutrition. Ben Schottker and his colleagues describe the results of their study of 9.578 subjects between the ages of 50-74 upon enrollment in ESTHER. Vitamin D levels were measured upon enrollment at at a 5 year follow up visit. Subjects were followed for a median of 9.5 years during which time 1,083 deaths occurred.
Men and women whose vitamin D levels were classified insufficient (between 12 and 20 ng/mL had a 17% higher risk of dying from any cause compared to those whole vitamin D levels were considered sufficient. Those with a reading of LESS than 12ng/mL had a 71% increased risk of dying.
Source: Life Extension Magazine article June 2013 edition
Here is more information in a link to how much Vitamin D should you take and why by Dr. Mercola:
Dr. Mercola's Comments:
As more and more scientific evidence emerges, confirming that currently recommended daily allowances (RDA) of vitamin D are grossly insufficient for young and old alike, many have asked me to clarify the recommended dosages, especially as it pertains to children.
General Information about Adult Vitamin D Requirements
Before I begin, I want to emphasize that under summer conditions it is frequently possible to generate about 20,000 units of vitamin D by exposing your skin to the sun. That fact makes these recommendations seem more in line with reality.
Currently, the U.S. RDA for vitamin D is 400 IU (international units) for the majority of the population. (IU is frequently shortened to just “units.”) This dose was recommended to prevent rickets, which works well, but does nothing to give the far more important protection from cancer, heart disease and infections.
To achieve the healthy blood levels in the graph below, most adults will need about FIVE THOUSAND units of vitamin D every day. Interestingly, the majority of people I see in my travels that are taking vitamin D are taking 1,000 units, and they believe they are taking “high” doses. Don’t fool yourself, as an adult, you likely need about 5,000 IU’s a day.
Some also worry that if they are in the sun that they will overdose on vitamin D.
However this is not typically the case, and here’s why: When you’re exposed to the sun, the UVB rays cause vitamin D to be produced in your skin while the UVA rays in the sunlight will tend to destroy excessive levels of vitamin D circulating in your body. It is somewhat of a natural failsafe mechanism that prevents overdosing.
HOWEVER, please understand that about 10 percent or more of the people reading this need significantly more than 5,000 units. I have seen people requiring over 30,000 units of vitamin D a day to reach therapeutic levels of 25 hydroxy D in their blood.
Please remember that the ONLY way to know for sure is to get your blood level tested, which I’ll go over in just a moment.
Current RDA Guidelines for Vitamin D are Outdated in Light of New Research
At the end of 2008, the American Academy of Pediatrics doubled its recommended dose of vitamin D for infants, children and adolescents, raising it from 200 to 400 units per day.
Unfortunately this is still a woefully inadequate recommendation for children.
Recent research reveals children may need ten times that amount in order to receive the health benefits that optimal vitamin D levels have to offer.
As of right now, the conventional RDAs are only:
400 IU for infants, children and adolescents
200 IU for adults up to age 50
400 IU for adults aged 51 to 70
600 IU for seniors over 70
Recommended Daily Intake for Optimal Health
Based on the most recent research, the current recommendation is 35 IU’s of vitamin D per pound of body weight.
So for a child weighing 40 pounds, the recommended average dose would be 1,400 IU’s daily, and for a 170-pound adult, the dose would be nearly 6,000 IU’s.
However, it’s important to realize that vitamin D requirements are highly individual, as your vitamin D status is dependent on numerous factors, such as the color of your skin, your location, and how much sunshine you’re exposed to on a regular basis.
So, although these recommendations may put you closer to the ballpark of what most people likely need, it is simply impossible to make a blanket recommendation that will cover everyone’s needs.
So how do you ensure optimal vitamin D levels for yourself, your child, and aging parents?