Here is a post about fats from the same author: http://theincidentaleconomist.com/wordpress/a-study-on-fats-...

Conclusion:

"Should we be eating more polyunsaturated fats? Should we be avoiding saturated fats? The honest answer is: I don’t know. Given my review of the evidence, I stand by my previous recommendations [1], which essentially focus more on foods and less on nutrients. I think the state of nutrition research in general is shockingly flawed."

[1] http://www.nytimes.com/2015/04/21/upshot/simple-rules-for-he...