Video: Sugar-heart disease link revealed

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    >>> the same subject, news today about the amount of sugar in the american diet and a new potential health risk for those who consume too much of it. we get more tonight from our chief medical editor dr. nancy snyderman .

    >> reporter: 39-year-old kevin irvine is recovering from a heart attack . like millions of americans , his diet may have been part of the problem .

    >> any time you get a couple of stents put in your heart in the morning, it makes you think of a lot of stuff.

    >> reporter: the jama reveals a link between sugar added to everyday foods and risk factor for heart disease .

    >> it is a much better known that high fat diet is related to cardiovascular disease .

    >> reporter: excess sugars decrease levels of good cholesterol and increases the try triglycerides. unlike natural sugars found in fruit, added sugars have no nutritional value. they are just empty calories and found in every grocery aisle. scientists now recommend women get fewer than 100 calories a day from added sugar and men fewer than 150 calories a day, but it's easy for it all to add up.

    >> i am a fan of soda.

    >> reporter: one can of soda has 170 calories and zero nutrition.

    >> yes, do i love ice cream ? i love ice cream .

    >> reporter: one scoop of vanilla, 92 calories of added sugar . food manufacturers say they're working on reducing sugar in their products. the grocery manufacturers association says all foods, including sugars, should be consumed in moderation as part of a healthy diet . leaving it up to consumers to choose their foods carefully and read those labels. dr. nancy snyderman , nbc news, new york .

    >>> when we come back, an

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