Earlier quoted context omitted.
For most people weight creeps up on them slowly. Losing a lot of weight quickly does require radical changes to diet, but not putting on the pounds in the first place is generally going to be a matter of burning an extra few hundred calories a day. Also, just not being sedentary all day is associated with a ton of positive health outcomes (possibly mental even more than physical) independent of body fat percentage. S…
Of course! Nobody can deny the panacea that is exercise. But it's still a widely misunderstood concept. Throughout many of these comments, people are claiming that the remedy to obesity is more exercise, but I hold that indeed a much larger component of combatting obesity is diet, not exercise.
Though population level there is also a lot of food policy and incentive structures we could alter to improve diets in general as well.