I was packing for a long trip last night and I chanced to turn into this
loca PBS broadcase of "FAT - What No One Is Telling You" .
I missed the first half hour, and was distracted by the packing process.
The www.PBS.org web page on this program is here:
If you have a chance to see it, it would be a good use of time.
Evidently, some basic factors of obesity are finally coming to light.
For example, bariatric surgery partly works because the digestive tract
is made smaller and the stomach made smaller. It also partly works
because gut nerves are severed, and in mouse studies, just the severing
of gut nerves leads to weight reduction.
Unfortunately, the program concluded that there was no simple solution
for how we can adapt to a advanced nation society in which food is
available cheaply and very often processed into unnatural states.
I was too distracted to be able to give a fair representation or summary
of the entire program.