A large study of 81,922 people published in the JANUARY 2007 issue of Gastroenterology shows data indicating that a meat diet protects against the development of pancreatic cancer.
https://www.gastrojournal.org/article/S0016-5085(06)02240-2/abstract
The subjects consuming the most methionine developed pancreatic cancer at less than half the rates of those with the lowest methionine consumption. And these findings followed a dose-response curve meaning that as methionine intake went up, pancreatic cancer went down in all the groups studied, providing even more strength to the correlation.
This study uses data extracted from a couple of large, country-wide Swedish studies: the Swedish Mammography Cohort and the Cohort of Swedish Men. In 1997 researchers gave Food Frequency Questionnaires to men born between the years 1914 and 1948 and to women born between 1918 and 1952 asking them to recall their average dietary consumption over the previous year. Recently researchers from the Karolinski Institute in Stockholm pored through this data and eliminated anyone who reported bizarrely high or low caloric intakes and anyone with cancer. They evaluated the 81,922 people who made the cut for methionine and vitamin B6 intake. They then checked to see how many of these subjects had developed pancreatic cancer over the intervening 7.2 years and correlated these cases with quartiles of methionine and vitamin B6 consumption. It turns out that there isn’t a correlation with vitamin B6, but there is a significant correlation with methionine consumption.
Men who consumed the most methionine had under a third the cases of pancreatic cancer as compared to those who are the least. Women with the highest methionine intake had about half the pancreatic cancer rate as those with the lowest intakes. Men and women eating the most methionine, considered together, had only 44 percent of the rate of pancreatic cancer as compared to men and women with the least dietary intake.
Further read: https://proteinpower.com/meat-diet-reduces-risk-of-pancreatic-cancer/