Sorry but I made zero ad-hominem attacks in my post.<p>&gt; data showing a correlation between doctors advocating low fat&#x2F;high carb and obesity in America<p>No there isn&#x27;t because no doctor advocates that without the other nuances I provided in my post.  I still feel like you are ignoring my posts, because my last post was literally entirely devoted to addressing this nuance.  The simple fact is that there is not a large group of people eating according to the medical communities recommendations who are obese.  The rise of obesity in America is people largely ignoring medical recommendations.  Yes, low fat was in fad for a while, but there is plenty of evidence that a low fat diet can be healthy, and that a high fat diet can be healthy, so, as I&#x27;ve repeatedly said, it depends.<p>&gt; I think the one point we do agree on is that this is a complex issue.<p>100%<p>&gt; But it&#x27;s quite obvious that the advice doctors have been giving for the past few decades has not had the intended effect.<p>When you radically simplify their advice, sure.  When you actually follow what is recommended, no not really.