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Thursday
Oct142010

Nutrition Experts Debate Idea That Not All Calories Are Created Equal

Photo Courtesy - Getty Images(WASHINGTON) -- Even if they're not exactly math whizzes, most dieters are experts at counting calories, tallying up every morsel and sip like a top-notch accountant. Somewhere along the line they learn that in order to lose weight, they must create a calorie deficit  by eating less fat, less carbohydrates, less protein or a little less of everything -- and whichever way they do it is immaterial. This is weight loss 101.

Now, a growing number of rebel researchers and practitioners are challenging this notion. They're taking the "carbs versus protein" diet debate a step further by maintaining the source of calories is just as important as the number of them.

Conventional nutrition experts acknowledge the biochemistry of nutrition is complex but one essential fact is constant: a calorie is a calorie no matter where it comes from.

"For the most part the evidence seems to show that just about any diet will give you about the same results for weight loss as long as you eat sensibly and exercise moderation," says Christine Gerbstadt, a spokesperson for the American Dietetics Association (ADA), a group that advocates "balanced eating plans" like the USDA Food Guide at MyPyramid.gov and the Dietary Approaches to Stop Hypertension (DASH Diet). Both diets are low in fat, sugar, cholesterol and salt, high in complex carbohydrates like whole grains and offer moderate amounts of lean proteins.

But experts like Jonny Bowden, a certified nutritionist and author of Living Low Carb, insist all calories are most certainly not created equal. As proof, he points to studies like this 2009 Swedish investigation where volunteers snacked on candy or peanuts to the tune of about 20 extra calories per each half pound of body weight. For example, someone weighing 150 pounds would overindulge by eating a gut busting 1,300 calories a day.

After two weeks, you might expect that both groups were popping the buttons on their pants but this was the case with just the sweet eaters. The peanut snackers did gain a small amount of weight but only about a third of what the candy eaters gained and only the candy group showed an increase in waist circumference, cholesterol and overall blood fats.

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ABC News Radio