Fat Is Good For You?

Harriet Hall has posted on the Science-Based Medicine blog concerning Donald W. Miller, MD's promotion of a highly saturated fat diet. 

As Hall concludes:

I see Dr. Miller as an example of an oft-repeated pattern. A conventional doctor becomes frustrated with his inability to help some of his patients, and he becomes seduced by an overly simplistic answer based on anecdote and speculation; then confirmation bias does the rest.  He convinces himself that his new treatment plan is working. He cherry-picks the literature, writes books and articles, proselytizes to the world, imagines conspiracies against the Truth he has found, and generally becomes far more enthusiastic than the evidence warrants.  He is sure he is right, and considers his experience proof enough; whereas a true scientist entertains other possible explanations, engages in meaningful debate with peers who disagree, and even tries to prove himself wrong. Listening to Miller gave me déjà vu all over again, and made me feel rather sad.

What's the harm? As always, let the buyer beware.