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Whole grain foods and heart disease risk
J W Anderson1, T J Hanna, X Peng
1Division of Biostatistics, VA Medical Center and University of Kentucky, Lexington, USA.
Insights
Dietary fiber intake is linked to reduced risk of coronary heart disease (CHD). Fiber-rich foods offer protective benefits, potentially through various nutrients beyond fiber itself.
Area of Science:
- Cardiovascular Health
- Nutritional Science
- Public Health
Background:
- Coronary heart disease (CHD) is a leading global cause of mortality, with significant healthcare costs.
- Dietary factors, including fat intake and fiber consumption, are implicated in CHD risk.
- CHD prevalence is rising in developing nations, mirroring trends in developed countries.
Purpose of the Study:
- To systematically review the scientific literature from the past two decades.
- To evaluate the association between dietary fiber intake and the risk of coronary heart disease (CHD).
Main Methods:
- Systematic literature review.
- Analysis of studies published over the last 20 years.
- Evaluation of dietary fiber's impact on CHD risk factors.
Main Results:
- Foods high in dietary fiber, such as fruits, vegetables, legumes, and whole grains, are associated with cardiovascular protection.
- These fiber-rich foods are also abundant in essential vitamins, minerals, antioxidants, and phytochemicals.
- These additional micronutrients may independently contribute to the observed cardiovascular benefits.
Conclusions:
- Dietary fiber plays a significant role in reducing the risk of coronary heart disease.
- The protective effects of fiber-rich foods may be attributed to a combination of fiber and other beneficial micronutrients.
- Increasing intake of fiber-rich foods is a potential strategy for cardiovascular disease prevention.
Abstract:
Coronary heart disease (CHD) is the leading cause of death in most developed nations and is rapidly increasing in prevalence in developing countries. Death rates from cardiovascular disease exceed 1 million annually in the United States and account for the largest disease-related cost to health with total costs estimated to exceed $120 billion per annum. Many dietary factors, including total and saturated fat consumption, fruit and vegetable intake and dietary fiber, have been shown to contribute to risk for CHD. We have systematically reviewed literature from the past 20 years evaluating an association between dietary fiber and CHD. Foods that are rich in dietary fiber, including fruits, vegetables, legumes and whole grain cereals, also tend to be a rich source of vitamins, minerals, phytochemicals. antioxidants and other micronutrients. Each of these factors may be independently contributing to the cardiovascular protective effects of fiber-rich foods.