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Do Sunlight and Vitamin D Reduce the Likelihood of Colon Cancer?

GARLAND, CEDRIC F, GARLAND, FRANK C·1980·International Journal of Epidemiology

Abstract

Garland CF (Department of Epidemiology, The Johns Hopkins University, School of Hygiene and Public Health, 615N Wolfe Street, Baltimore, Maryland 21205, USA) and Garland FC. Do sunlight and vitamin D reduce the likelihood of colon cancer. International Journal of Epidemiology 1980, 9: 227–231. It is proposed that vitamin D is a protective factor against colon cancer. This hypothesis arose from inspection of the geographic distribution of colon cancer deaths in the U.S., which revealed that colon cancer mortality rates were highest in places where populations were exposed to the least amounts of natural light - major cities, and rural areas in high latitudes. The hypothesis is supported by a comparison of colon cancer mortality rates in areas that vary in mean daily solar radiation penetrating the atmosphere. A mechanism involving cholecalciferol (vitamin D3) is suggested. The possibility that an ecological fallacy or other indirect association explains the findings is explored.

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Metadata

Authors
GARLAND, C. F., & GARLAND, F. C.
Venue
International Journal of Epidemiology
Published
1980
Volume
9
Issue
3
Pages
227-231
ISSN
  • 0300-5771 (ISSN-L)
  • 1464-3685
OpenAlex
W2107100887
Cited by
882
References
0
FWCI
0.00
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Do Sunlight and Vitamin D Reduce the Likelihood of Colon Cancer? https://app.cochat.ai/papers/10.1093/ije/9.3.227
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GARLAND, C. F., & GARLAND, F. C. (1980). Do Sunlight and Vitamin D Reduce the Likelihood of Colon Cancer? International Journal of Epidemiology. https://doi.org/10.1093/ije/9.3.227

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.