Post hoc comparison also showed the following effects of disease on taste score of each gustin gene genotype group (Figure 3C): sweet, bitter and umami scores of IBD patients with AA and AG genotypes were lower than those of the corresponding HC subjects, while scores for sour were higher in the IBD patients than HC subjects, (p < 0.026; Fisher’s LSD test adjusted by Bonferroni correction subsequent to two-way ANCOVA). This evidence concerns the gene CA6 and inflammatory bowel disease.