(CNN) - Avoiding certain foods can help us live a healthier life. When it comes to eating, there are good guys and bad buys.
Eating the right portion size, eating a variety of foods and avoiding the "5 food felons"can help you live a better life.
Never heard of them? First on the list is saturated fat, which you find in things like fatty meats and foods containing palm or coconut oil.
"We're eating many more of the foods that have saturated fat in them and that then causes us to have the start of atherosclerosis," Dr. Michael Roizen said.
Or the narrowing of our blood vessels, putting us at higher risk for heart attack and stroke.
"The second one to avoid is transfat, it's a poison," he said.
Transfats not only raise our bad cholesterol, but they lower our good. You find them in some margarine and in commercially baked goods such as cookies and cakes.
The other three food felons all have something in common.
"You want to avoid simple sugars, added syrups and any grain that isn't 100 percent whole grain," Roizen said.
That's because they can all cause unhealthy spikes and then dips in our blood sugar, which may increase our risk for diabetes.
"You want no more than four grams of sugar per hour," he said.
That would also be about a third of a teaspoon.
The best way to put the cuff on the "5 food felons" is to go for the good guys: fruits, vegetables, whole grains and low-fat proteins.
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