He says a decrease in the use of salt and unhealthful fats probably also helped.

VOA: special.2011.02.15

He says even if people have a healthy body weight, sitting for long periods of time still has an unhealthy influence on blood sugar and blood fats.

VOA: special.2010.01.13

But there was little direct evidence to show that cutting saturated fats actually lowered the risk of heart disease.

VOA: standard.2010.03.25

For years, might?" doctors have been telling patients to cut down on saturated fats - the kinds of fats in meats and milk,for example.

VOA: standard.2010.03.25

Reducing saturated fats may reduce cholesterol, but low fat diets alone don't seem to do much to actually reduce clogged arteries and heart attacks.

VOA: standard.2010.03.25

But Mozaffarian said dietary fats may also affect blood pressure and inflammation of the blood vessels;

VOA: standard.2010.03.25

"because the fat mass can induce changes that are metabolically bad, like an increase in glucose or insulin, also an increase in fat,blood fats, like triglycerides or cholesterol."

VOA: standard.2010.07.08

It's still not exactly clear how the polyunsaturated fats confer this benefit.

VOA: standard.2010.03.25

We have to focus on the kinds of fats we eat.

VOA: standard.2010.03.25

Now,a new study says reducing fats isn't enough.

VOA: standard.2010.03.25

So Mozaffarian and his colleagues studied the studies,eight of them, in which some participants ate less saturated fat and more polyunsaturated fats, the kind of fats that are in fish,nuts, and vegetable oils.

VOA: standard.2010.03.25

Previous studies found that people who ate a lot of saturated fats were more likely to have a lot of the kinds of cholesterol that can clog arteries and lead to heart attacks.

VOA: standard.2010.03.25

"So for example, dietary fats also actually, in many cases, improve HDL cholesterol, the good cholesterol, compared to carbohydrates, and they actually lower triglycerides, a type of blood lipid which is associated with harm."

VOA: standard.2010.03.25

"If someone says I should eat fruits,vegetables, whole grains,fish,nuts, and avoid processed foods, sugary beverages, and foods with trans fats or high in salt, that's actually much simpler, I think,than chasing all of these numbers."

VOA: standard.2010.03.25