Research published in the American Journal of Clinical Nutrition found that replacing refined grains with whole grains can reduce abdominal fat and inflammation in people with metabolic syndrome. In this study, obese adults with insulin resistance followed similar weight-loss diets for 12 weeks, differing only in the type of grains consumed.
Both groups lost weight and body fat. However, those eating whole grains experienced a greater reduction in abdominal fat and a 38% decrease in C-reactive protein (CRP), a marker of inflammation linked with cardiovascular risk.
Participants eating whole grains also showed greater improvements in cholesterol compared with those consuming refined grains. These benefits may relate to the higher fiber and antioxidant content of whole grains, as well as their more favorable effects on blood sugar and insulin response.
This study supports the idea that grain quality matters, particularly for people with metabolic stress, insulin resistance, or elevated inflammation.
Reference
American Journal of Clinical Nutrition. January 2008;87(1):79–90.
Whole-grain consumption and markers of inflammation and abdominal adiposity in adults with metabolic syndrome.
