Cecil and Obesity

Paper Summary:

This paper reviews the study done by Cecil, Francis and Read. This study attempts to explain why those following the Atkins diet lost more weight, more body fat and achieve a higher level of caloric restriction than those on a more conventional diet. The study was carried out on a group of nine fasting male subjects in a two part paired experiment.

From the Paper:

"It was determined that, following intragastric ingestion of both the high-fat and the high-carbohydrate soup, baseline appetite ratings were suppressed, which would indicate no difference between the two food types. Furthermore, there were no differences in ratings of fullness, hunger ratings, or gastric emptying between the two soup types. This result would indicate that there was not a significant difference between the two soup types, when taken ingested by intragastric isocaloric infusion.
However, these results were significantly different when the soups were eaten physically. In the second experiment, the high-fat soup suppressed hunger, induced fullness, and slowed gastric emptying more than the high carbohydrate soup. Further, an energy intake test following each experiment showed that the high-fat soup reduced the amount of energy intake from foods eaten two hours after the high-fat soup. These results show that when taken orally, high-fat content food sources may provide orosensory, or taste, stimulation that causes different appetite and gastrointestinal responses. In other words, the taste stimulation caused by high-fat foods may result in feelings of increased fullness and satiety. "

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