Sean Cate
Sean Cate
July 6, 2024 ·  3 min read

Expert Encourages People to Take This Vitamin to Reduce Dementia Risk

Recent studies have highlighted the significant role of vitamin D in reducing the risk of dementia. Experts now recommend regular intake of vitamin D supplements to help protect brain health. Here are seven important points on this topic.

1. Vitamin D and Dementia Prevention

vitamin D pills
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Dr. William Grant, a vitamin expert, emphasizes that regular vitamin D intake can dramatically reduce the chances of developing dementia. Studies have shown that individuals with low vitamin D levels are at a higher risk of Alzheimer’s disease, a common form of dementia.1 Dr. Grant advises maintaining adequate vitamin D levels to support overall brain health.

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2. Evidence from Recent Studies

man walking by brain with missing piece
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Research conducted in France revealed that people with vitamin D levels below 50 nmol/L were three times more likely to develop Alzheimer’s disease. Additionally, a study involving 12,000 individuals aged 70 and over found that those taking vitamin D supplements daily had a 40 percent lower occurrence of dementia.2

A tablet with the inscription Vitamin D on a spoon
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To maintain good health, including brain health, Dr. Grant suggests that a blood level of vitamin D above 75 nmol/L is necessary. This recommendation is based on extensive evidence regarding various health conditions, including cardiometabolic diseases, cancer, diabetes, and dementia.

4. Seasonal Supplementation

woman in the sunshine with her arms open
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Vitamin D is known as the “sunshine vitamin” because our bodies produce it in response to sunlight. However, during the months of October to March, sunlight is often insufficient in many regions. Therefore, it is advisable to take vitamin D supplements during these months to ensure adequate levels.

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5. Dosage and Consultation

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A daily dose of 10 micrograms of vitamin D is considered adequate for most people. However, individuals with darker skin may require higher doses due to lower natural production of the vitamin. It is important to consult a medical professional before making significant changes to your diet or supplement regimen.

6. Natural Sources of Vitamin D

salmon filets on a plate
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In addition to supplements, certain foods are rich in vitamin D. These include oily fish like salmon, sardines, herring, and mackerel, as well as red meat, liver, egg yolks, and fortified foods such as some fat spreads and breakfast cereals. Incorporating these foods into your diet can help boost your vitamin D levels naturally.

7. Broader Health Benefits

Medical poster image of the bones of the knee, the joint in the knee. Arthritis, inflammation, fracture, cartilage,. Copy space.
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Beyond reducing the risk of dementia, vitamin D plays a crucial role in maintaining healthy bones and a strong immune system. Ensuring sufficient vitamin D intake can have wide-ranging health benefits, making it an essential nutrient for overall well-being.


Vacation, holiday, sun and vitamin D intake. Heath care concept. A canvas on an easel with sun and letter D symbols on the sands of a beach.
Source: Shutterstock

Vitamin D is emerging as a powerful tool in the fight against dementia. Regular supplementation, especially during months with limited sunlight, can help maintain adequate vitamin D levels and potentially reduce the risk of developing Alzheimer’s disease and other forms of dementia. Alongside a healthy diet, vitamin D supplements offer a simple yet effective way to support long-term brain health.

Read More: Mother Thought Her Child’s Bushy Eyebrows Were Just a Trait from Dad, Only to Realize It Was a Symptom of Childhood Dementia


  1. Expert urges people to take vitamin that reduces risk of dementia.” MSN. January 2024
  2. Expert urges people to take vitamin that reduces risk of dementia.” Irish Star. John O’Sullivan. November 14, 2023.