Is obesity “epidemic” genetic?
The authors examined the dietary data of 36,400 Americans between 1971 and 2008 and the physical activity data of 14,419 people between 1988 and 2006. They grouped the data sets together by the amount of food and activity, age, and BMI.
They found a very surprising correlation: A given person, in 2006, eating the same amount of calories, taking in the same quantities of macronutrients like protein and fat, and exercising the same amount as a person of the same age did in 1988 would have a BMI that was about 2.3 points higher. In other words, people today are about 10 percent heavier than people were in the 1980s, even if they follow the exact same diet and exercise plans.
That’s a huge increase in BMI, with no explanation based on diet or exercise.
I have always suspected that people are getting genetically fatter because heavier people have more children than skinny people, plus there’s also dysgenic immigration. A recent study showed yet again that married people weigh more than single people, even though married people ate healthier food. Skinny people are more likely to remain single and childless.
Unfortunately, I can’t read the study itself because it’s behind a paywall.