“The extra-virgin-olive-oil group also consumed more than four tablespoons of the oil a day, replacing regular olive oil with the extra-virgin variety, which contains more potentially heart-healthy compounds like polyphenols and vitamin-E tocopherols — which can lower levels of inflammatory factors that contribute to heart disease — in addition to oleic acids, which are lower in the saturated fat that can build up in blood vessels.”
“To ensure that other factors that could affect heart-disease rates were not playing a role, the researchers also adjusted for the total amount of calories the groups were eating, since obesity can be a major contributor to heart attack and stroke. Even after making these adjustments, however, the olive-oil groupshowed statistically significant drops in heart-disease risk”
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