encouraging because trans fat restrictions will take effect nationwide next year. nbc's ann thompson has our keeping you healthy report. >> reporter: the temptation of trans fats, enhancing fried foods, chips, cookies and cakes to the delight of consumers and bane of doctors. empty calories increasing the risk of heart attacks and strokes and curbing trans fats improves health. a new study finds, three years after new york counties banned trans fats, people hospitalized for heart attacks and strokes dropped by more than 6%. >> there is no recommended daily allowance for a safe trans fat consumption. study haves shown just a couple grams of intake can increase your risk for heart attack and stroke. >> reporter: how do trans fats do that? by raising your bad cholesterol levels and lowering the good leading to plaque buildup in your arteries that can lead to heart attacks and