&gt; That&#x27;s true as far as it goes, but the internal fight inside the medical research community was whether it was fat or sugar that was the culprit in a host of physical problems. Fat won in a slam dunk, even though it turns out to be wrong.<p>The idea that you can isolate it down to fat vs. carbs is &quot;not even wrong.&quot;  It doesn&#x27;t ask the right questions, and ignores many other confounding factors.  I don&#x27;t really want to keep restating this point.<p>There are healthy high fat diets.  There are healthy low fat diets.