Word: weight
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...From many kinds of studies conducted over years, we are quite confident now that a calorie from fat will cause a similar amount of weight gain as a calorie from carbohydrate. There are some interesting questions about whether eating carbohydrate calories versus fat calories will make you eat more calories, but based on what you put into your mouth, it's pretty clear that the source of the calories is really not important...
...high-fat/low-carb diet or to a low-fat/high-carb diet and follow them for at least a year or more. That kind of study takes into account the possibility that one kind of diet provides more satiety; so, over the long run you would see more weight loss on that diet. But those studies - half a dozen or more have been done - show quite clearly that the percentage of calories from fat has very little effect on long-term weight loss...
...possible footnote to this issue relates to some recent evidence on trans fats. We have seen in our studies that people who eat more trans fats seem to gain more weight, even when the total calories are the same. I was a little skeptical about that, in part because we're not quite sure we can measure calorie [intake] precisely enough. [It's hard for people to track their portion sizes to the gram, or even be sure of exactly what they're eating, especially if they ever eat out.] But in recent five-year feeding study in monkeys - they...
...there may be something more complicated going on there. But there's not any good data [to explain why a calorie of trans fat should cause more weight gain than a calorie of something else]. It may be that on the high-trans-fat diet you're more likely to push those calories into your fat cells rather than your muscle cells - and muscles burn calories 24 hours a day. In the long run, that could make a difference in weight gain. But that's speculation. We're really not sure...
...sanded and painted and caulked and coated that boat, I even injected her timbers with chemicals to stop the softening. But nothing beats the rot. One morning in August I couldn't drag her anymore. She buried herself right there on the beach. Broke up under her own weight. The sand really did close up over her. I found the mound it made years later and dug. You could still smell the wet wood in the discolored sand underneath. But there was no boat there any more. Reduced to tiny particles. It's what happens to man-made things, around...