It's not that simple. Yes, dairy fats lend themselves to satiety but that doesn't mean all fats do. There's lots of unhealthy fats and even some healthy ones that don't lend themselves to higher satiety: take a look at the Holtz Satiety studies: http://www.mendosa.com/satiety.htm

They clearly show Croissants, cakes, Doughnuts and even Peanuts have very low satiety. Sure, eggs, cheese and beef do okay, but they're still beaten by apples, oranges, oatmeal and potatoes.

And, let's not loose sight of the fact that health is important too, and there's lots of fats out there that don't do your health good.

I mean high fat vs. the reduced fat foods craze that swept the developed world starting a few decades ago. Really, just a return to previous, moderate and balanced healthy fat consumption.

> Croissants, cakes, Doughnuts

Those things are also loaded with sugar.

There are croissant-based-pastries that are high in sugar, but a standard canonical croissant is savory not sweat. It’s basically just butter, flour, water, and yeast.

Aren't fruits/veggies good because of fiber? It's usually pretty hard to find fiber with fats, but those tend to be the best bang/calorie in terms of satiety, at just from reports I've read.

I always buy full fat everything when available (yogurt, milk, cheese, etc), rarely cut out fat from meats, and use plenty of healthy fats in cooking (olive oil, avocado), and bring overweight isn't something I worry about for myself or my kids.

In general though, if you need to choose between more fat it more carbs, you're usually better off with fat, unless those carbs are high in fiber.