Flutterby™! : physical activity, caloric intake, and obesity

The Atlantic: Why It Was Easier to Be Skinny in the 1980s

A new study finds that people today who eat and exercise the same amount as people 20 years ago are still fatter.

Obesity Research & Clinical Practice: Secular differences in the association between caloric intake, macronutrient intake, and physical activity with obesity

Results Between 1971 and 2008, BMI, total caloric intake and carbohydrate intake increased 10–14%, and fat and protein intake decreased 5–9%. Between 1988 and 2006, frequency of leisure time physical activity increased 47–120%. However, for a given amount of caloric intake, macronutrient intake or leisure time physical activity, the predicted BMI was up to 2.3 kg/m2 higher in 2006 that in 1988 in the mutually adjusted model (P < 0.05).

https://doi.org/10.1016/j.orcp.2015.08.007

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