A New Study Found A Connection Between Low Levels Of This 1 Vitamin And Dementia — And 60% Of The World Is Deficient In It

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Many people’s vitamin D levels do not fall within a healthy range, which can cause muscle weakness, fatigue, depression, bone pain and lower immune function. In fact, an estimated 60% of the world is vitamin D deficient and needs a supplement, Dr. Michael Holick, a professor of medicine, pharmacology, physiology & biophysics and molecular medicine at Boston University Chobanian & Avedisian School of Medicine, previously told HuffPost.

But if that alone isn’t enough to convince you to prioritise getting vitamin D, which you can do through foods like salmon, tuna, and milk, new research published in the journal Neurology this month may do the trick. The study suggests that people with high vitamin D levels in their 30s and 40s have lower dementia risk factors later in life.

The study investigates the potential impact of vitamin D levels in early midlife by examining the prevalence of tau protein and amyloid protein in the brain, “which are key hallmarks of Alzheimer’s disease,” Dr. Thomas M. Holland, physician-scientist and assistant professor at the Rush Institute for Healthy Aging at Rush University Medical Center in Chicago, told HuffPost via email. Holland is not affiliated with the study.

Researchers followed 793 people in their 30s and 40s with an average age of 39 over 16 years. Vitamin D levels were tested at the beginning of the study; those with levels below 30 nanograms per milliliter (ng/mL) were categorised as having low vitamin D; anything above was considered high.

After a follow-up at the end of the study, it was determined that participants in the high-vitamin D........

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