Back in 1977, government guidelines consisted of reducing fat intake to as low as 30 percent of calories, as a way to reduce the risk of coronary artery disease. These recommendations triggered a shift in the food industry, which resulted in the production of no-fat products substituting carbohydrates for fats.
Today, the guidelines for fat consumption have undergone a dramatic shift and are currently being reevaluated. The new guidelines should be released sometime in 2004. Here are the latest recommendations for calorie consumption from the National Academies' Institute of Medicine:
- 45-65 percent of calories from carbohydrates
- 20-35 percent from fat
- 10-35 percent from protein
Experts pointed out that there hasn't been any evidence to support reducing your fat intake under 30 percent would prevent obesity, diabetes and cardiovascular disease.
Also, research has yet to determine whether or not a limited amount of dietary saturated fats actually benefits a person's health. Since reducing saturated fats from the food supply involves a long and tedious process, researchers posed the question, "Should the steps to reduce the amount of saturated fats from the food supply be put on hold until evidence clearly shows which amounts and types of saturated fats are optimal?"
Researchers also recommended exploring the effects of saturated fats on individual metabolic phenotypes and then suggested performing further studies on the influences of varying saturated fatty acid intakes according to individual lifestyles and genetic backgrounds.
American Journal of Clinical Nutrition September 2004 80(3):550-559
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