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Nutrition and cancer.
1National Reference Laboratory, Nashville, TN 37217.
Clinical Chemistry
|August 1, 1992
Summary
A low-fat, high-fiber diet rich in fruits and vegetables may prevent up to 35% of cancers. This dietary approach, emphasizing reduced fat intake and increased fiber, is crucial for cancer prevention strategies.
Area of Science:
- Oncology
- Nutritional Science
- Preventive Medicine
Background:
- Diet significantly influences cancer development.
- High-fat, low-fiber diets are linked to colon cancer.
- High-fat diets are also associated with breast and prostate cancer.
Purpose of the Study:
- To examine the role of diet in cancer pathogenesis.
- To investigate the link between dietary fat and cancer risk.
- To highlight the preventive effects of antioxidants and fiber.
Main Methods:
- Review of epidemiological evidence.
- Analysis of animal studies.
- Evaluation of prospective trials on dietary fat and cancer.
Main Results:
- Dietary fat is implicated in colon, breast, and prostate cancers.
- Antioxidants (vitamin E, ascorbic acid, beta-carotene) show antipromoter effects.
- A diet ≤10% calories from fat and ≤40g fiber daily may prevent up to 35% of cancers.
Conclusions:
- Dietary modifications, particularly reducing fat and increasing fiber, are vital for cancer prevention.
- Incorporating fruits and vegetables into the diet is recommended.
- Specific dietary patterns can significantly reduce cancer incidence.