In most of the 19th century, heart disease, cancer, diabetes, and obesity were rare and obscure and not common at all. You were about as likely to get the above conditions as you were to be struck by lightning.
Beginning in the late 19th century, that all began to change. All of the above disease began to increase to where we are today. Today they are the principle driver of disease and death, with incidences rising many thousands of percent…
So what happened…? The Industrial revolution happened…
One of the waste products of the IR was seed oils like corn, canola(rapeseed) cottonseed, etc.
As capitalism does, it managed to re-purpose these waste oils into food. Extracted with steam and hexane and then bleached and oxidized to not taste disgusting, corporations made it into the food supply.
Every cell wall in your body is largely built of lipids (fats), as is a majority of your brain. The promotion of highly oxidative seed oils is akin building your bodies fundamental structure as if building a bridge from highly rusted steel. Bad things happen…
There is a direct correlation between the rise in seed oil consumption over that years and chronic disease and death. This needs to be more widely known.
Here is Dr. Chris Knobbe with an excellent video diving into the data…