IBD is a chronic intestinal disease affected by microbiome, genetic, environmental, and immunological factors. Traditional medicine is accompanied by a high percentage of side effects. CAM is designed by four methods including nutrition, microbe balance, dietetic management, and micro biome-therapy. This study aims to determine the prevalence and effects of CAM use in patients with IBD in the Saudi Arabian population. We will conduct a cross-sectional study with a representative random sample of Saudi residents in the Kingdom of Saudi Arabia using a self-administered questionnaire. For data analysis, we will use Statistical Package of Social Science Software (SPSS) version 24. In this paper, 386 people participated in the current study including 67.1% female and 32.9% male. More than 60% were aged below 39 years old, and around 60% were married. 40.9% were employed, so the majority of them had low monthly income, and 55.4% got bachelor's degrees. 28.5% reported other reasons behind choosing CAM for IBS, while 23.6% feared conventional drugs' adverse reaction, 12.2% felt a ‘’more natural’’ approach, and only 9.8% had a failure of conventional therapy. CAM is frequently utilized by IBD patients in Saudi Arabia. Patients tend to use CAM when their symptoms are severe. Hence, IBD experts should be aware that many IBD patients today also receive CAM therapies in addition to conventional treatment. So, discussing CAM co-treatment should be a regular part of IBD consultations.