I've checked a few facts from her book ( the easy ones to check online) and found that she is not telling the truth.
Nathan Pritikin: he did not die "in the prime of his life", he was 70 and yes he committed suicide but not because "he realized his low fat diet was not working" but because he was dying and likely painfully. And no, his low fat diet did not "help him recover from leukemia" but he had been in remission for over 20 years before it flared up again.
She also mentions that people from Okinawa eat generous amounts of pork and seafood and do all their cooking in lard. I did quite a bit of searching and found this not to be actually true. Their diet seems to be actually mostly plant based and when they eat pork they remove the fat from it. Seafood is eaten in small quantities.
Now, eating in moderation fats, meat, eggs, dairy and so on seems a perfectly healthy and logical diet to me. But I can't believe a word she says anymore and I'm very disappointed. And I guess that extends to the Winston Price foundation as well. How do I know what is true or not?
And that's fine if you are young and healthy but I'd not recommend her diet or book for someone older or who already has problems.
I'm quite PO.