"Prebiotics and Diet to Reduce Leaky Gut in First Degree Relatives of Crohn's Disease Patients"

Oligofructose-enriched inulin \[a combination of shorter chain oligofructose, Degree of Polymerisation (DP) 3 - 9 and longer chain inulin (DP ≥ 10), in a 50:50 ratio ± 10 %\] 12 g/day for 6 weeks

The Mediterranean diet pattern (MDP) with increased n-3 PUFA, saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA) and reduced n-6 PUFAs food intake will be adopted as suitable Low n-6 PUFA diet.

Maltodextrin consists of D-glucose units connected in chains of variable length (DP 3-17). The glucose units are primarily linked with α(1→4) glycosidic bonds. Maltodextrin is easily hydrolyzed by the intestinal enzymes and thus does not have an effect on colonic microbiota. Maltodextrin (5 g/days for 6 weeks) will be used as a placebo for the prebiotic treatment

"Participants who will not be assigned to Low n-6 PUFA diet will be advised to follow the Canada's Food Guide recommendations (Control diet). As Canada's Food Guide Diet is also designed with the aim to support healthy eating and prevention of metabolic and chronic disorders, this diet may not be considered as a true comparator for the Low n-6 PUFA diet intervention."