This is an important issue, but it's one that confuses a lot of people, especially most "experts," apparently. For example, a recent study found that a fat-rich soup as an appetizer led to people eating about 20 percent less calories:
QUOTE: ...When compared with the protein soup, the fatty soup significantly reduced the amount of caloric intake with the following meal in both lean (962.0 vs. 1,188.5 calories) and obese (1,331.9 vs. 1,544.6 calories) subjects. A similar reduction in caloric intake was noted in lean subjects eating in the social setting (1,555 vs. 1,825 calories), except that significantly more food was consumed in social sessions compared with the lab setting...
"In this study, we found that fatty soup as an appetizer reduces food intake by about 20 percent in both lean and obese subjects and may have a therapeutic potential for obesity," said Jiande Chen, Ph.D., of the University of Texas Medical Branch and senior author of the study... UNQUOTE.
Source: http://www.sciencedaily.com/releases/2007/05/070521141029.htm
However, other evidence makes it clear that if a soup rich in the common highly unsaturated oils is consumed, weight gain is to be expected. Thus, it appears that a soup made with coconut oil might be the best way to lose some weight safely. I found that on my current diet, I could gain or lose a few pounds quickly, by including sugar-rich items like cookies with the meal, or by eating things like dessicated coconut and banana instead. The meals all consist of high-quality protein, mostly cheese, millk, and/or boiled egg.
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