This Common Vitamin Deficiency Can Lead to Dementia

This Common Vitamin Deficiency Can Lead to Dementia
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The importance of vitamin D in disease prevention is well-documented. Vitamin D deficiency has been linked to numerous conditions, including some cancers, cardiovascular disease and urinary tract infections (and you can read more in my previous article about 12 Common Diseases Caused by Vitamin D Deficiency).

Now, scientists linked vitamin D deficiency with a substantially increased risk of dementia and Alzheimer’s disease in older people. The research findings are very valuable and open up fresh possibilities in this area of health care and prevention.


What is Dementia?

Dementia is a chronic and progressive syndrome. It’s an umbrella term, under which several diseases and conditions are classified. The most prevalent type of dementia is Alzheimer’s disease.

Other common types include vascular dementia, dementia with Lewy Bodies and fronto-temporal dementia. There are over 35.6 million people living with dementia worldwide, and a new case emerges every 7 seconds.

The Study

The dementia study published in Neurology was conducted by an international team of researchers. 1,658 adults aged 65 and over were included in the study and followed over a period of six years.


The participants had to be able to walk unaided and were free from dementia, cardiovascular disease and stroke at the start of the study. It was discovered that adults who were moderately deficient in vitamin D (their vitamin D levels were between 25 and 50 nanomoles per liter) had a 53% increased risk of developing dementia of any kind.

The risk increased to 125% in those who were severely deficient (their vitamin D levels were below 25). For Alzheimer’s disease, the risk was 69% higher for those who were moderately deficient, and 122% higher for the severely deficient group.

Previous studies have established that there is a connection between low vitamin D levels and development of cognitive problems, but this is the first and most robust study that showed the significant risk of dementia and Alzheimer’s disease in people with vitamin D deficiency.


One of the researchers, Dr. David Llewellyn from the University of Exeter Medical School, points out that further clinical studies are needed to establish if eating vitamin D rich foods or taking supplements could indeed delay or even prevent the onset of Alzheimer’s disease and dementia.

Getting More Vitamin D

Maintaining proper vitamin D levels is one of the 70 habits featured in my e-book 70 Powerful Habits For A Great Health which will guide you how to take positive steps to improve your wellness and overall health.


To get sufficient amounts of vitamin D, you either need to spend enough time in the sun to synthesize it in the skin, take a supplement or you can get it with food, such as fish oil, eggs and fortified foods (read more in my article about the top 5 foods and supplements to delay Alzheimer’s disease and dementia).

Older people find it hard to produce enough of this vitamin, which might make them more susceptible to different diseases. Experts say that it’s difficult to get enough vitamin D from food alone, unless you’re a lover of fatty fish. With sun, it’s hard to quantify how much sun is enough, and in many countries the amount of UVB radiation in winter is too low to allow vitamin D production. That’s why many people reach for vitamin D supplements.

Getting enough vitamin D might not necessarily protect you from developing dementia, but it could definitely be a step in the right direction.

Vitamin D can assist in treating other health conditions. Read about them in my articles:
1. Arthritis and Vitamin D Deficiency – The Connection
2. How To Fight Psoriasis With Vitamin D

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3 Responses to This Common Vitamin Deficiency Can Lead to Dementia

  1. Shirley says:

    Hi jeny good day to you I find your informations very interesting and would like to purchase your books how ever when I try to used PayPal I am not able to log in.please tell me the safest way to purchase you’re books. Irealy need to get them for my husband ix very sick with stroke and is unable to walk.thank you very much.

    • Jenny says:

      Hi Shirley, you can also pay with credit card. Just below the area that says “pay with my PayPal account” (that requires you to login) you will see a blue line that says “pay with a debit or credit card”. Click this link and continue from there.

  2. Pattie says:

    I am a 69 yr of female and vit D deficient..but i have IBS/Colitis and vit D supplements constipate me..i eat one egg a day and get about 5 mins of sun every day..

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