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A diabetes researcher’s take on dietary sugar

With all the talk these days about fructose, glucose, sucrose, high-fructose corn syrup, and sugar in general, it can be hard for a health-conscious person to sort out the truth.

“A lot of people are putting out their ideas as established fact,” says diabetes researcher and endocrinologist John Bantle, M.D., a professor of medicine at the University of Minnesota. “It’s hard to find the actual facts and then to interpret them.”

Bottom line: Too much sugar is bad, if only for the excess calories. But the story isn’t quite so simple. (more…)

Hunter-Gatherers Expend Same Calories as Average Americans

By Guest PostAugust 3, 2012Scienceafrica, audax mabulla, brian wood, caloric intake, calories, cause, david raichlen, energetic expenditure, evolutionary science, frank w marlowe, gym membership, hazda, herman pontzer, hunter college, hunter gatherer, obesity, obesity pandemic, physical exercise, susan b racette, Tanzania, Technology, university of arizona, western population, yale anthropologist

Taking in too many calories far outweighs getting too little exercise as a cause of obesity, according to a study of a hunter-gatherer society co- authored by Yale anthropologist Brian Wood and recently published in the July issue of the journal PLoS One.

Using state-of-the-art technology to measure the daily energetic expenditure of the Hazda, a foraging people of Tanzania, Wood and co-authors Herman Pontzer (Hunter College) and David Raichlen (University of Arizona) discovered that even though these last remaining hunter-gatherers in Africa are quite physically active, they expend on average no more calories in a day than the adult population of the industrialized world. Given the total lack of obesity among the Hadza, whose average daily calorie consumption is far lower than that found in the developed world, the researchers concluded that increased caloric intake is the main source of rising obesity in Western populations. (more…)

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Shaking out Sugars

Hunter-Gatherers Expend Same Calories as Average Americans