Figure 1.

A. Body weight gain in rats maintained on a standard, low fat laboratory chow diet (left) was not differentially affected by consumption of non-predictive potato chips compared to predictive potato chips. In contrast, body weight gain was significantly greater in animals given Olestra + HF chips (right) compared to HF chips alone when animals were maintained on a high fat chow diet. B. When switched to a high fat diet, body weight gain was significantly greater in animals previously maintained on a standard chow diet and given Olestra + HF chips compared to animals maintained on a standard chow diet and given only HF potato chips (left). After discontinuation of chips, body weight gain did not differ in animals continued on the high fat chow diet (right). Body weight was measured daily – some points omitted for clarity.

* p< 0.05 compared to HF only group maintained on HF chow on days 23–28