Well said!
100 years ago obesity was not a problem (and still is not a problem in most of the world).
Then we started eating more fat, more sugar and more processed junk food and sitting around on our arses all day at work and in front of the TV all evening.
Does not take a genius to join the dots.
The Calories programme made me cringe when it had one family standing in a gym repeatedly picking up a heavy weight and getting chased up and down steps. People get the idea that this is what they need to do to burn some calories rather than a pleasant cycle or walking to work.
The programme very clearly made the point at the family who spent the morning cleaning the house burned more fat than the family who went to the gym and said explicitly that steady exercise / active life style is the best option