Richard, your statement brings up another weakness found in observational studies: there is a confluence of factors that could play a role in health and longevity. You say that “as Okinawans move away from Japanese yams, vegetables and fruits to more meat and processed foods that disease is increasing.” How do you know the determining factor is grass-fed organ meat when you yourself said that another factor was processed foods. Are they equal? Indeed, Okinawans have not only increased their intake of conventionally raised meat (., unhealthy product–unlike grass-fed meat and pastured eggs) and processed foods, but have also increased their intake of whole grains. Their lifestyles have also become more sedentary. More Okinawans smoke tobacco and drink alcohol than did in the 1950’s.
Best way is to see for yourself where you stand. Simply record the amounts of everything you eat for a few days and then enter them into cronometer (). This will tell you where you stand on eating enough protein as a whole and each essential amino acids. In a previous comment on this video to Andrew I gave an example day for me. At 2470 calories cronometer said that I ate overate somewhat at 135% of my daily calorie needs. Since I am losing weight, I beg to differ, but that is neither here nor there. Cronometer says that day I consumed 85 grams of protein or 185% of my daily needs. With respect to lysine in particular I consumed 146% of my RDA. And lysine wasn’t the lowest that day, methionine was at 133% of my RDA.