Do you have any hypotheses as to why so few people are able to just eat right and exercise?
I imagine it is the result of many factors and each person is different. Time is probably a factor for many. Some are just lazy or don't care. Some want a quick fix and waste their time with the latest fad in dieting or the latest pill, and excuse themselves from the hard work and discipline. Food manufacturers obviously try and exploit our evolved desire for sweets and fats.
The evidence suggests it isn't that simple.
It isn't easy. Things that are good usually aren't gotten for free.
Can you hold your breath?
Can you hold your breath indefinitely?
Suppose eating fewer calories than you expend is like holding your breath. People can do it for short periods of time but eventually the biological drive to breathe or to maintain one's excess weight becomes too difficult to overcome?
I have trouble with this analogy. Holding your breath indefinitely is not possible, while eaten right and exercising certainly is possible.
The small % of people who are successful at maintaining weight loss suggests very strongly that biological drives and not simple willpower are at the root of the problem.
I agree that biological drives are difficult to deal with, but we do it all the time when we refrain from all sorts of biological impulses. That's what willpower provides for, right?
Why should health be any different?