5X fewer hip fractures from Parkinson – Alzheimer – Stroke with enough sun – June 2011

Sunlight exposure is important for preventing hip fractures in patients with Alzheimer’s disease, Parkinson’s disease, or stroke

Acta Neurologica Scandinavica, Article first published online: 18 JUN 2011; DOI: 10.1111/j.1600-0404.2011.01555.x
J. Iwamoto, T. Takeda, H. Matsumoto

Objectives?–? Hypovitaminosis D as a result of malnutrition or sunlight deprivation, increased bone resorption, low bone mineral density (BMD), or an increased risk of falls may contribute to an increased risk of hip fractures in patients with neurological diseases, including Alzheimer’s disease, Parkinson’s disease, and stroke. The purpose of this study was to clarify the efficacy of sunlight exposure for reducing the risk of hip fractures in patients with such neurological diseases.

Methods?–? The English literature was searched using PubMed, and randomized controlled trials evaluating the efficacy of sunlight exposure for reducing the risk of hip fractures in patients with Alzheimer’s disease, Parkinson’s disease, and stroke were identified. The relative risk and the 95% confidence interval were calculated for individual randomized controlled trials, and a pooled data analysis (meta-analysis) was performed.

Results?–? Three randomized controlled trials were identified.
Sunlight exposure improved hypovitaminosis D and increased the BMD.
The relative risk (95% confidence interval) of hip fractures was

  • 0.22 (0.05, 1.01) for Alzheimer’s disease,
  • 0.27 (0.08, 0.96) for Parkinson’s disease, and
  • 0.17 (0.02, 1.36) for stroke.

The relative risk (95% confidence interval) calculated for the pooled data analysis was 0.23 (0.10, 0.56) (P = 0.0012), suggesting a significant risk reduction rate of 77%.

Conclusion?–? The present meta-analysis added additional evidence indicating the efficacy of sunlight exposure for reducing the risk of hip fractures in patients with Alzheimer’s disease, Parkinson’s disease, and stroke.


The three diseases in this article are just a few which are associated with low levels of vitamin D

Supplementing with sunshine or vitamin D would not only reduce the probability of the disease but would also reduce probability of hip fractures as well

Should also have the vitamin D co-factors with sunshine or vitamin D

Co-factors both increases the effectiveness of the vitamin D and builds bone

See also VitaminDWiki

Possible Vitamin D Interactions

See also web

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