I really enjoyed this DVD and appreciate your approach to analyzing the data.
There seems to be a disconnect between the nutritional data and the observational studies.
I don't see the disconnect at all when all of the information is put into proper perspective and context.
Observational studies make associations and do not define (or structured to find) cause and effect.
At the amounts consumed in the observational studies, it is easy to see how the potential good could easily outweigh any potential negative, which I discuss in the DVD.
For every potential negative issue discussed, I tried to put it in perspective.
For example, for sat fat, I say, while "X" nut may be high in saturated fat, if one was to only consume an ounce or two as part of an otherwise healthy diet, low in sat fat, would that amount of sat fat from the "X" nuts be enough to cause a problem?
However, if "X" nut was consumed in the amount of 4 or more oz per day, at that level, could the amount of sat fat from the "X" nut be a potential issue?
I also discussed this issue again in the addendum's.
If those people substituted 1 ounce of nuts a day for an equivalent caloric intake of an egg mcmuffin then this all makes sense. However if they instead gave up the same calories from a baked potato I am confused
This is also covered in the DVD.
Observational studies (which only show associations) lead researchers to conduct randomized controlled trials to see if their observations about associations are correct. Many of these controlled studies have now been done on nuts. I discuss the two recent meta-analysis on nuts, one looking at 18 studies and the most recent one looking at 25 RCT's. I show the statistical results and put those into real life perspectives, which is more eye opening.
In other words, while a drop of 5% may be reported as statistically significant in the study, to a person with a cholesterol of 300, it is only a drop of 15 points and they are still at a level of 285, which is still high risk.
I guess I understand your conclusion that it is ok to consume 1 ounce of nuts a day,
That was not my conclusion
And I also discussed 5 addendum's to my conclusions which covered the full spectrum of possibilities and options. So, there was a huge range of conclusions depending on who you are and what your objectives are.
but If you are already eating a healthy Mcdougall diet is there any advantage to substituting this amount of nuts for say a banana
As I said in the DVD, that is a decision you will have to make. And, it depends on the context of your total diet and lifestyle and health.
However, according to the author of the study on the 25 RCT's..."Greater cholesterol lowering effect is found when nuts replace saturated fat than when olive oil or carbohydrates are replaced"