“…Findings from 18 human intervention studies (references listed in footnote 14 ), summarised in a non-systematic review by Reiser (1987), the majority (14/18) of which showed that consumption of pectins resulted in a statistically significant decrease in total cholesterol concentrations 15 14 Keys et al (1961), Fahrenbach et al (1965, Palmer and Dixon (1966), Jenkins et al (1975), Durrington et al (1976), Delbarre et al (1977), Kay and Truswell (1977), Miettinen and Tarpila (1977), Raymond et al (1977), Ginter et al (1979), Jenkins et al (1979), Stasse-Wolthuis et al (1980), Judd and Truswell (1982), Nakamura et al (1982), Schwandt et al (1982), Challen et al (1983), Sablé-Amplis et al (1983), and Hillman et al (1985). 15 Importantly, it is not clear from Reiser's description of this result whether the conclusion on statistical significance was based on a within-group comparison (i.e., comparing end of treatment to baseline values in the pectin group) or a between-group comparison (i.e., comparing results obtained in the pectin group to the control group), the latter comparison obviously being a more robust and reliable comparison.…”