For over half a century, Americans have been taught a simple explanation for the nation’s No. 1 killer: that saturated fat clogs our arteries, leading to heart failure.
This diet-heart hypothesis, first put forth in the 1960s by physiologist Ancel Keys, remains firmly lodged in popular consciousness. But unbeknownst to most, modern medical research now understands heart disease to be far more complex than a matter of meat and butter consumption alone.
