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Folate intake and prostate cancer risk: a case-control study
Jackilen Shannon1, Elena Phoutrides, Amy Palma
1Oregon Health & Science University and Portland Veterans Affairs Medical Center, Portland, Oregon 97239-3098, USA. shannoja@ohsu.edu
Nutrition and Cancer
|October 20, 2009
Summary
Dietary folate intake may reduce prostate cancer risk, particularly high-grade forms. This study suggests a protective role for folate in prostate health.
Area of Science:
- Oncology
- Nutritional Science
- Epidemiology
Background:
- Folate deficiency is linked to various cancers.
- The specific role of folate in prostate cancer development is not fully understood.
- Prostate cancer remains a significant health concern globally.
Purpose of the Study:
- To investigate the association between dietary folate intake and prostate cancer risk.
- To determine if folate intake influences the risk of high-grade prostate cancer.
- To explore potential interactions between folate intake and alcohol consumption in prostate cancer.
Main Methods:
- Case-control study design.
- Inclusion of biopsy-confirmed prostate cancer patients, clinic controls, and biopsy-negative controls.
- Assessment of dietary folate intake and alcohol consumption.
Main Results:
- Inverse association found between dietary folate intake and overall prostate cancer risk.
- Dietary folate and natural folate sources significantly reduced the risk of high-grade prostate cancer.
- No significant interaction was observed between alcohol consumption and folate intake.
Conclusions:
- Higher dietary folate intake is associated with a reduced risk of prostate cancer.
- Folate intake appears particularly protective against high-grade prostate cancer.
- Findings support the importance of dietary folate in prostate cancer prevention.
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