A significant difference in the risk of CRC in relation to meat intake was observed among carriers of the NFKB1 del-allele compared with homozygous carriers of the ins-allele.21 Carriers of NFKB1 -94 del-allele were at 3% increased risk pr 25 g meat per day (95% CI: 0.98–1.09), whereas homozygous carriers of the ins-allele were not at increased risk (P-interaction 0.03). The gene discussed is NFKB1; the disease is colorectal carcinoma.