Yeah, it's kinda like how way back all the nutritionists demonized fats but then the food companies started loading up on sugar, because "zero fat! was the eye catching headline. Then high fructose corn syrup became dirt cheap and they loaded up every food on the planet with sugary syrup. Even if you look towards government for nutritional advise (imagine doing that), how are they going control Americans from shoving burgers and chips down their gullet? Don't trust them for much.
One very good example is some sort of yogurts with zero fat. I personally think that any processed foods are deadly, natural fats are actually highly needed in our body. Food companies are gaining billions annually poisoning the community and the government of course is highly supporting it because we are talking "billions" in here.
I believe that the government has no reason to make you fat. Because of the advancement of biotechnology, any theory about health and nutrition is constantly changing.
The government's goal is to make citizens to be healthy. It's just that the theoretical update is slower than the rapid development of society.
If this is the case why is it that most of the countries do not support agriculture that much? They are spending billions to make medicines that were caused by the processed foods rather than spending it on the local farmers and growers.
If the government really cares about the well-being of the citizen they should have banned cigars and soda but they don't because it is giving them a lot of money.