“VAT volume was approximately 10 percent lower in adults who reported eating three or more daily servings of whole grains and who limited their intake of refined grains to less than one serving per day,” said first author Nicola McKeown, PhD, a scientist with the Nutritional Epidemiology Program at the USDA HNRCA.
“For example, a slice of 100 percent whole wheat bread or a half cup of oatmeal constituted one serving of whole grains and a slice of white bread or a half cup of white rice represented a serving of refined grains.”
Whole grains and refined grains – how to tell the difference
The key difference between the two grains lies in the way they are processed during production.
“Whole grains haven’t had their bran and germ removed by milling; therefore, all of the nutrients remain intact,” explains the Mayo Clinic.