Nut consumption does not appear to lead to the expected weight gain. How is it possible given how many calories they have? Doesn't this violate some pesky law of the physical universe (the first law of thermodynamics)? That's the subject of Solving the Mystery of the Missing Calories (http://nutritionfacts.org/video/solving-the-mystery-of-the-missing-calories/).

There definitely are foods linked to weight gain, see Does Eating Obesity Cause Obesity? (http://nutritionfacts.org/video/does-eating-obesity-cause-obesity/) and Waistline-Expanding Food (http://nutritionfacts.org/video/waistline-expanding-food/) for example.

I give a summary of obesity in the diabetes section of my full-length Uprooting the Leading Causes of Death (http://nutritionfacts.org/video/uprooting-the-leading-causes-of-death/) as well.

For more insight from the Harvard Nurses Health Study see What Women Should Eat to Live Longer (http://nutritionfacts.org/video/what-women-should-eat-to-live-longer/), Skim Milk and Acne (http://nutritionfacts.org/video/skim-milk-and-acne/), Harvard's Meat and Mortality Studies (http://nutritionfacts.org/video/harvards-meat-and-mortality-studies/), and Meat Hormones Female Infertility (http://nutritionfacts.org/video/meat-hormones-female-infertility/).

Note: Note: I updated the video on August 25, 2012. I am indebted to Jeff Nelson (vegsource.com) for pointing out my mischaracterization of the 2007 Natoli & McCoy review (http://apjcn.nhri.org.tw/server/apjcn/Volume16/vol16.4/Finished/588-597Natoli.pdf). I've not only corrected the video, but expanded it (by 8 minutes!) to cover all of the studies published in the 5 years since. The evidence is stronger than ever that the consumption of nuts does not lead to the weight gain one would expect.

Image Credit: anxietyreliefstress.com.

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