Dr Sharma's post at http://www.drsharma.ca/practical-guide-to-obesity-prevention-in-schools-in-developing-countries.html leads to http://www.drsharma.ca/wp-content/uploads/Guide-Obesity-Prevention-in-Schools-Final-Delisle-et-al.pdf.
All very interesting but in section 6.2 or so states
The Theory of Planned Behaviour (Ajzen, 1991) is an extension of the Theory of Reasoned Action (Ajzen & Fishbein, 1980). The main assumptions of the theory are (Ajzen, 1991): 1) individuals usually behave rationally; 2) they take into account the information that is available and use it; and 3) they consider the implications of their actions before undertaking a behaviour. The behaviour under study should be well defined.
Ya Sure. individuals usually behave rationally. In who's world? It is not so much irrational and we do not know the reason for the actions. They never experienced one of my "feeding frenzies". Nothing rational there. Consider a different but dangerous act. Aggressive driving. Why do people it? Most do not think the way they drive is aggressive or dangerous. They drive the way they have been taught by society. Do you see what I am saying? Our weight tells us we are doing something wrong, but the government does not have a clear understanding of the reasons we overeat. Until they get those and frequently state and list all those, the are just beating there gums.
The primary reasons we eat? Hunger, appetite and cravings. We need to understand all these and the contributing factors, and remove these before we, society, can recover.
There have been a few people who tried to divide human behavior into three categories: reptilian, mammalian, and neo-mammalian; aka, physical or biological, chemical, then emotional, unconscious, habit and final rational. If overeating were rational, there would be no problem. Overeating is in the first two categories except for willful overeating, or FU eating.
All I can say is good luck. But of course, if we had a solution, all these people would be unemployed. Follow the money and avoid the solution.
But here is someone who may have it righter http://thelowcarbdiabetic.blogspot.ca/2014/10/dr-wortman-on-ketogenic-diet-for.html