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Figure 2: Changes in highdensity lipoprotein cholesterol (HDLc) and ratios of HDLc to lowdensity lipoprotein cholesterol (HDLc/ LDLc ratio) and to total cholesterol (HDLc/TC ratio), in type 2 diabetic patients received 1 g/day (group 1), 2 g/day (group 2), and 3 g/day (group 3) of Nigella sativa for 12 weeks. The corresponding parameters in the 3 groups were compared using analysis of variance. Data are mean ± standard error of mean of the values as percentages of the corresponding baseline values, considering baseline values equal 100. (a) Significance of difference between groups 2 and 1 (P < 0.05). Group 3 was nonsignificantly different from groups 1 and 2 
