Krill oil and fish oil reduce histopathology associated with arthritis in mice. Histopathology scores in sections taken from knee joints of arthritis induced DBA/1 mice on termination of the study. Sections were scored for cell infiltrations (A), synovial hyperplasia (B), bone/cartilage erosion (C) and total histology score (D). Data represents mean values ± SEM (n = 13-14). * Significantly different from control group (P < 0.05).