Fig. 1 – Weekly change in blood glucose concentrations (a)
after an overnight fast and (b) 2-h after the evening meal for
the two trial conditions: vinegar drink (n = 7) or vinegar pill
(control condition, n = 7). Values shown are the mean ± SE of
duplicate determinations. Complete data were available
through week 7; the last data is carried forward for three
data points in weeks 8–12 (n = 1 for drink and n = 2 for pill).
Labeled points at right represent the 12-week average
change by condition (p = 0.05 and 0.21 for the fasting and
postprandial glucose concentrations respectively; univariate
analysis).