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- A study in a cohort of 12,388 persons showed that vitamin D exposure over 10 years could lower the risk of dementia by 40 percent; women in the study experienced a greater benefit than men.
- There are 50 million people worldwide with dementia and experts estimate that number will nearly triple by 2050; vitamin D deficiency is also a widespread problem with a worldwide prevalence of up to 1 billion people.
- Vitamin D has a neuroprotective effect, can reduce the percentage of people who move from prediabetes to diabetes and can help prevent and/or treat certain cancers, gastrointestinal diseases, uterine fibroids, lupus, obesity, and neurodegenerative diseases such as multiple sclerosis.
- There is a synergistic effect with magnesium, vitamin K2, and calcium and an imbalance may raise the risk of heart attack and stroke; the only way to determine how much sun exposure or supplementation you need is to test your vitamin D level.