At week 6, less than half the participants (46.5% on SCD and 43.5% on Mediterranean diet) were in remission using the short Crohn's disease activity index, less than 35% of participants had a faecal calprotectin <250 μg g–1 and less than 5% had high‐sensitivity CRP < 5 mg L–1. This evidence concerns the gene CRP and Crohn disease.