Even small portion of fried foods can increase risk of heart disease, study says Even a small portion of fried foods can increase your risk of heart disease, according to a new study. (Source: CNN) By CNN Staff | January 19, 2021 at 9:41 AM CST - Updated January 19 at 5:36 PM (CNN) – There’s more evidence that eating fried foods may increase your risk for major heart disease and stroke. An analysis published Monday in the journal Heart shows each additional weekly serving of 114 grams or 4 ounces (½ cup) of fried foods increased the risk of heart attack and stroke by 3%, heart dise...