Fig. 1. Percentage reduction in voluntary energy intake in studies examining the effects of high vs. low fiber diets. Values are means of treatment groups for studies >2 days duration with control group values set to 100. In a paired t test analysis of the group means from individual studies, treatments averaged 90% of controls and were significantly different (p = 0.003). Reprinted with permission from Howarth et al. [21].

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