Carbohydrates and HDL (Page 2 of 5)

At the same time, studies began show that these types of diets could produce a decline in blood levels of HDL, a form of cholesterol that actually helps arteries stay healthy.

The issue caused "a fair amount of concern" for dietary experts, Lichtenstein said.

The latest research, presented Friday at the AHA's annual conference on Arteriosclerosis, Thrombosis, and Vascular Biology in San Francisco, may allay those concerns.

A research team led by Sophie Desroches, a doctoral student in nutrition at Laval University in Quebec City, Canada, had 65 adult men consume the AHA's recommended diet for six weeks. The AHA regimen advises that people consume 58 percent of their total daily calories from carbohydrates, 26 percent from fat (less than 7 percent from saturated fat), and 16 percent from protein.

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