That's the skinny(har har.) Folks get sucked into buying "fat free" fig newtons or "fat free" gummy bears, perhaps not understanding that calories which are not spent are stored--as FAT. Of course, some calories are better than others nutritionally. But I don't know why this requires any special science. Eat your vegetables, go easy on the starches, and get plenty of exercise. Hell, my granny coulda told me that (she did!) If some folks do well on a high meat, low carb diet, I guess that's an option. I like to eat steak from time to time. But for me what works is about 60% vegetables, 20% protein and 20% carbs. And I get a lot of my protein through soy products and fish. I save up my meat intake for the gusto--rib eye steak.
I am interested in studies dealing with cancer and heart disease. I want to learn more about this darned trans fat. That hydrogenated oil is everywhere. I am already a high risk (ex smoker, family history of heart disease and cancer, New Jersey resident, type A personality). I am trying to minimalize the risk as much as possible. If that means no more cheese crackers, so be it.