Question 5 assumes that food alone, or even mainly is to blame for the rising obesity epidemics hitting most industrialized nations.
The thing is, food has changed very little, if at all and there are NO food changes that correlate with the epidemics in obesity.
What does correlate directly with the rise in obesity rates are the growing popularity of cable/sat TV, video games and the Internet. Combine this with the previous rise in desk jobs and use of automobiles for even short trips, and you've triggered a time bomb.
The kicker is this: There is very little else to do but MUNCH when sitting around surfing the web, watching TV or playing video games. The most noticeable change in eating habits in the last 25 years has been the growth of the snack food industry. Combine sedentary lifestyles with the constant munching that goes along with them, and you have rampant obesity among those in the population genetically prone to obesity.
Granted, some people can sit on their ass all day long eating everything they see and not gain weight. But many, even most, cannot. Sit them in front of a TV and give them an endless supply of munchies along with their already over-sized home-cooked or store-bought meals, and they WILL gain weight.
This focus on food, or the food industry is absurd. Food makers and sellers are merely supplying what the public wants. And have done this for decades previous to the rise in obesity that started in the late 80s and really got it's legs in the mid 90s. What must be addressed are the lifestyles that lead to obesity. Families prone to obesity should cancel their cable/sat TV service, limit their Internet service and discard their video games and focus on active pastimes. Not only will this increase their activity levels, it will also limit their munching that compounds the issue.