Candy I hope you don't think I was trying to argue. Both programs can be followed closely or not. My friend (white pasta and white rice are not binge items for her) doesn't following as exact as it is written...she eats white pasta and rice as is written for the whole wheat pasta and brown rice.
What I mean is if everyone would follow the program as it truly was intended using the fast food, junk as options not staples everyone would have been better off and no hunger.
Truly I think W/W needed to stress more of the core foods in Flex/Winning/10%/1-2-3 instead of keep saying YOU CAN EAT ANYTHING the whole program would have been better off.
The best think I like about Flex is may ability to eat out like a normal person...Core makes me feel like a freak in dining out. Yes I know that many feel the opposite. It is an individual thing.
I still feel most people who are just starting on a weight loss program need some guidance in what a normal serving looks like first then can move on easier to learning to listen to their body on the satisfaction levels. That is just my opinion (however after talking to several leaders it appears W/W recommends that too --

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The biggest thing I disagree is 'A SUGAR ADDICTION' as there is not scientific research the addiction. I know that people call it an addiction but it is a 'taste' we enjoy and it comes from the mothers milk which is sweet and it carries over into the person over the course of their life. I don't thing Core 'cures' the sugar but can lessen the want for it because "it does not allow" unless you choose to use some WPAs for it.