Rethinking Unsubstantiated Nonsense About Energy Balance
For decades, the common dogma of energy balance stated that weight gain or loss is a simple matter of “calories in and calories out.” On the second day of YWM2016, Steve Blair called for a rethinking of “nonsense presented repeatedly without any data to back it up.”
At the top of his list for such nonsense, he placed claims that “increased food intake alone explains the increase in body weight in the United States.” And then methodically refuted those claims.
Blair explained that daily energy expenditure has dropped substantially over the last 50 years. He relied largely on a study published in PLOS ONE by Tim Church and colleagues. “No compelling evidence shows people are eating more than they did forty years ago,” he said.
Blair also made the case that energy balance is far more complex than simplistic food and exercise cartoons. For example, the Obesity Society recently detailed more than 60 factors that can affect energy balance and result in storing the excess as fat.
Simplistic thinking about energy balance is simply wrong. Even now, our understanding of energy balance is incomplete. Only with a deeper understanding can we begin to develop, test, and implement more effective interventions.
Click here for Blair’s presentation.
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August 28, 2016