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Study shows high intake of refined grains does not increase risk of cardiovascular disease
A recent new study, Trends in Cardiovascular Medicine, shows that consuming high intakes of refined grain products does not increase the risk of cardiovascular disease (CVD), coronary heart disease, heart attack, heart failure or stroke. The study also calls for reflection on Western dietary patterns and their consideration in future nutritional recommendations. Although refined grains are included as a component of the Western dietary pattern, the results of the meta-analyses suggest that refined grains do not contribute to the higher CVD risk associated with this unhealthy dietary pattern. The study demonstrated the lack of association between refined grain intake and CVD risk in meta-analyses of 17 prospective...
Study shows high intake of refined grains does not increase risk of cardiovascular disease
A recent new study, Trends in Cardiovascular Medicine, shows that consuming high intakes of refined grain products does not increase the risk of cardiovascular disease (CVD), coronary heart disease, heart attack, heart failure or stroke. The study also calls for reflection on Western dietary patterns and their consideration in future nutritional recommendations. Although refined grains are included as a component of the Western dietary pattern, the results of the meta-analyses suggest that refined grains do not contribute to the higher CVD risk associated with this unhealthy dietary pattern.
The study demonstrated the lack of association between refined grain intake and CVD risk in meta-analyses of 17 prospective studies (involving 877,462 participants), which also limited analyzes only to cereal staple foods (e.g., bread, cereal, pasta, white rice) as well as meta-analyses of studies that included both staple and indulgent grain products (e.g. cakes, cookies, donuts, brownies, muffins, pastries).
These new results challenge the widely held view that refined grain products are associated with an increased risk of cardiovascular disease. Refined grains are typically part of the Western dietary pattern, which also includes red and processed meats, sugar-sweetened beverages, French fries and high-fat dairy products. Research shows that these foods, particularly red and processed meats and sugar-sweetened beverages, are the real culprits in this dietary pattern. Meta-analyses in the new study show that the higher CVD risk associated with this dietary pattern does not come from refined grain products.
Dr. Glenn Gaesser, Professor, College of Health Solutions, Arizona State University and study author
Refined grains are milled grains, a process that removes the bran and germ to extend the grain's shelf life. This process removes some of the original fiber and B vitamins from the food, but often fortifies them with additional B vitamins and iron.
This study follows a recent commentary published in Mayo Clinic Proceedings by Gaesser, who examined data from existing published studies to find no association between type 2 diabetes and refined grain consumption.
“I hope that these new results will be taken into account when formulating future dietary guidelines for Americans,” Gaesser added. "I think it's important that the nutrition community recognizes these findings, and while they rightly encourage increased consumption of whole grains, this does not have to be at the expense of refined grains. Refined grains can be incorporated into a healthy diet."
Source:
Reference:
Gaesser, GA, (2022) Refined grain consumption and cardiovascular disease: meta-analyses of prospective cohort studies. Trends in cardiovascular medicine. doi.org/10.1016/j.tcm.2022.08.002.
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