Are Calorie Labels Worthless?
Scientists increasingly believe that the math is all wrong
By Kevin Spak, Newser User
Posted Feb 25, 2013 1:58 PM CST
Updated Feb 25, 2013 2:16 PM CST
This tomato may not have as many calories as advertised.   (Shutterstock)

(Newser) – Ever wondered how those calorie numbers that have become all-important to dieters were devised? Well, you can trace the formula back to a 19th century scientist who burned food to measure its energy, then weighed human feces and urine to determine how much of that was excreted, subtracted the two and—voila!—determined a formula that has more or less stood to this day. With science that advanced, it's little wonder that a growing number of modern scientists are questioning his math, Mother Jones reports.

Last week, a panel of scientists presented research indicating that cooking food breaks down its cell structures, making much more of its energy available for the body—meaning that raw, unprocessed food is significantly less caloric than previously thought. The body also consumes more energy breaking raw food down. The energy equation is also affected by your stomach bacteria, which varies from person to person, making true calorie counts a much more complicated question than your average cereal box can handle.

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Showing 3 of 17 comments
Feb 25, 2013 6:44 PM CST
What a nutty headline. Calories are not worthless, because they tell you the energy content - - but they don't tell the whole story. Glycemic index is another telling indicator.
Feb 25, 2013 5:48 PM CST
Just like requiring phy-ed in school. Hasn't helped decrease obesity. Has increased it.
Feb 25, 2013 5:43 PM CST
The simple fact for the obesity epidemic is the chemically processed food people eat. A McDonalds cheeseburger, looks like a cheeseburger, but is about as far away from a cheeseburger as you can get. The chemicals added to that garbage and the coloring they have to use to literally "paint" the food to make it look edible are deadly and indigestible. No frozen meals (yes, even LEAN CUISINE), no fast food (not even a salad), and no processed anything from the store, and people will lose weight. Check the ingredients on anything you buy and do some Google searches, you will be floored on what is in some "healthy" foods.