In a country where two thirds of all adults are overweight and 20-25% are obese (varies from state to state), fat is bad.
With twice the energy density of protein and carbs, lowering calorie intake is just easier by cutting fat out of your diet.
Cheers
Cutting the fat out is the worst you can do. I have first hand experience on multiple diets and whilst I can't talk for everyone, I can talk for many whom have similar experiences. I'm about 110kg so 2000kcal is not a lot for me.
When I eat 2000Kcal on a high fat diet, I feel well and energetic, not hungry and can easily notice that, shit I was supposed to eat two hours ago, head is clear and everything works like a charm.
When I eat 2000Kcal on a high carbohydrate diet. I feel weaker, hungry all the time and often somewhat miserable and cold, there is NO WAY in hell I'll forget to eat a meal in this diet. The next meal is often the only thing I can think of.
It's those aforementioned things, that are the reason losing weight often fails on high carb diets. It's hard to push through all that.
On a high carb diet things however get easier with plenty of aerobic exercise, because that will cause your fat metabolism to activate, making you feel energetic and less hungry. With high fat diet your fat metabolism is constantly active.
High fat diet is also healthy, it really is. There is nothing wrong with saturated fat. On a quick glance/ simple math high fat intake might sound bad, but in practise it's what our bodies have evolved to run and work well on.
I don't want to make too much fuss about some of the things regarding this matter, but atleast in Finland and I expect it to be somewhat similar in US, since we copy lot of stuff from there, the doctors don't receive education on nutrition or it's effects in the body in med school, or are taught only miniscule amounts of it. Doctors often aren't good at curing the disease or the cause of it. They treat symptons not the cause. Doctors know a lot about what symptons are cured by what drug. They honestly don't know too much about some of these things they should know about and often can be descriped as basically being only well paid marketing tools for the drug companies. They do lot's of stuff right also don't get me wrong on that, but they are failing at keeping us healthy. They simply aren't taught the right information.
Drug companies want to sell you drugs. They care wayyy more about the health of their bottom line than your health, If you are healthy and don't need drugs, things don't look too good for them. They don't want you to die, but if they can hook you on a drug and keep you alive for long, but somewhat miserable, you'll be a good customer. Nothing is better than hook you up with multiple lifestyle drugs.
It really is as simple as that.
Someone said that you shouldn't take a lifestyle drug for your problems, but instead to change your lifestyle. The official quidelines for healthy lifestyle and losing weight are much harder than necessary. Trying to get healthy/normal weight with high carb diets, especially if you have already got yourself in a bad situation is hard and makes sure many fail and that the drug companies will have plenty of business for the foreseeable future.
There is plenty of corruption to go around and the drug and food industry are certainly no exception. The connections between the food and medical industry and decision making institutes are ugly to say the least.
edit: This movie is worth watching: