Biochemical parameters of blood plasma and liver of rats, mean ± standard error of the mean. Triglycerides (a), bilirubin (b), LDL cholesterol content (calculation) (c), LDH activity (d), phosphorus content (e), CYP1A1 activity in the microsomal fraction (f). *the difference with the control group is significant; # the difference with the group receiving HFCD is significant, p < 0.05, Mann-Whitney test. The bracket above the bars denotes significant dependence on the factors: “diet” (D), “tyrosine” (Tyr), “tryptophan” (Trp), p < 0.05, 3-way ANOVA. Index @ excluding rats treated with Tyr. The numbers of animals in the groups were 8.