An-Najah Staff

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Original research

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Abstract

Background: The pathogenesis and clinical course of Crohn’s disease (CD) is influenced by diet. Mediterranean Diet

(MD) helps Crohn’s patients through many mechanisms. Aims: This study aimed to evaluate the effect of the MD on

CD patients and to evaluate such effect on body parameters. Methods: PubMed, Science Direct, Web of Science,

MEDLINE and Cochrane central library were searched for MD and CD from 2010 to 2020. Included studies met

the following criteria: (1) male and female adults (18–75 years) with a confirmed diagnosis of CD; (2) MD as an intervention;

(3) original interventional Trial, Cross-Sectional Analysis, or Prospective Cohort Studies. Results: Five studies

were included, involving 83,564 participants. A small number of patients with CD fulfilled the P-MDS criteria, the

overall scores were low, 4.7 and 4.5 for females and males respectively. Patients with an inactive disease whose adherence

to MD was greater, the MD score was negatively correlated with disease activity (p <0.001) and positively with

IBDQ (p = 0.008). Twenty-seven percent had a prevalence of impaired adherence to a MD (mMED score = 0–2), giving

such a population a risk attributed to 12% for the later CD. Seventy-point reduction in CDAI + decreased fecal

CRP / calprotectin, calprotectin <250 mcg/gm or >50% decrease from baseline and hsCRP < 5 mg/L or >50%

from baseline. Conclusions: MD showed anti-inflammatory properties. Adherence to MD was associated with

improvement in CD patients and negatively correlated with the disease activity, in addition to a lower risk of developing

CD later in life.

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