[elil17]

While a sedentary lifestyle causing obesity may be true on an individual basis (and exercise is really really good for you regardless of your weight), it fails to explain why people who do manual labor tend to be as fat or fatter than people who have office jobs and why sedentary people of the past were not that fat compared to people today. There are a lot of reasons detailed in the series about why personal choice cannot adequately explain how it is we are getting fatter as a society. I think there are many good arguments for a non-chemical cause, like more and more appetizing highly processed foods.

But to say "people will blame anything instead of taking action" makes no sense. We have had decades of action trying to get people to eat healthy and exercise. It hasn't done anything. We have to accept that just telling people to lose weight doesn't work and start pursuing other options.

And there are so many good options! In Spain, for example, "staple foods" such as vegetables, meat, and bread are taxed at a lower rate while highly processed foods are taxed at the normal rate. In most developed countries, universal healthcare helps people prevent and manage the worst diseases associated with obesity such as heart disease and diabetes. And yes, we should investigate alternate explanations outside of the exercise/diet nexus such as chemical contamination! It may not be the reason but it is a testable hypothesis that would be "big if true."