This is interesting. But I'm reserving my judgment about PUFAs.

There's a subreddit, https://www.reddit.com/r/SaturatedFat/. They hate PUFAs, and love saturated fats. But having lurked on that sub for a while, I don't think they've found the magic bullet for weight loss. It's not as if obese people who cut out PUFAs magically go back to a healthy weight.