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Thesis- Khawlah Al-Muhanna FINAL.pdf (2.8 MB)

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Are There Differences in Nutrient Intake Following Initiation of A Low FODMAP Diet in Patients with Irritable Bowel Syndrome?

Al-Muhanna, Khawlah S
http://orcid.org/0000-0002-1378-6618
http://rave.ohiolink.edu/etdc/view?acc_num=osu1492607846495982

Abstract Details

2017, Master of Science, Ohio State University, Allied Medicine.
Ingestion of food has been widely documented to trigger symptoms of Irritable Bowel Syndrome (IBS)1. In recent years, the low FODMAP diet has been gaining high-quality evidence of efficacy in controlling symptoms of IBS.2 The diet eliminates foods high in poorly absorbed carbohydrates including fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAPs) for a period of 2-8 weeks, followed by planned systematic re-introduction to assess tolerance.2 However, this novel therapy remains in need of further research to form a sound evidence-based application strategy. Of concern is the diet’s nutritional adequacy given its highly restrictive nature and lengthy elimination period. This pilot study assessed changes in nutrient intake following initiation of the diet, and examined diet adequacy in view of the recommended dietary allowance (RDA) of nutrients. Five patients with severe to moderate IBS were enrolled. After collection of a health questionnaire, an IBS-SSS, a Bristol Stool Form Scale, and a 3-day diet record, subjects attended a nutrition education class on the low FODMAP diet and were asked to follow it for 6 weeks. On week two of the diet, subjects filled another 3-day diet record. Results showed that in the majority of subjects, total caloric intake fell within estimated needs. While percent of total calories from fat remained stable, percent of total calories from protein decreased but remained within the acceptable macronutrient distribution range. Percent of total calories from carbohydrates increased, but remained below acceptable range- similar to pre-study status. Intake of vitamin D, calcium, and folate decreased, while intake of vitamin C, iron and fiber increased. However, these micronutrients were all at levels below RDA. Our findings agree with reported lower intakes of protein and calcium, and stable intake of fiber in those following the diet. However, our results differ from findings of lower caloric and carbohydrate consumption. In addition, our study proposes that proper dietitian-led nutrition education and monitoring can lead to adequate nutrient intake while on the low FODMAP diet as positive dietary changes, such as higher intake of fruit, vegetables, whole grains, fiber, and vitamin C have been observed. More rigorous and well-designed studies are warranted to evaluate macro and micronutrient intake while on the low FODMAP diet to determine short-term and long-term impact on nutritional status.
Marcia Nahikian-Nelms (Advisor)
Kristen Roberts (Committee Member)
Jill Clutter (Committee Member)
122 p.
Health; Health Care; Health Education; Health Sciences; Medicine; Nutrition
Irritable Bowel Syndrome, IBS, Low FODMAP Diet, Diet Adequacy, Dietary Changes

Recommended Citations

Citations

  • Al-Muhanna, K. S. (2017). Are There Differences in Nutrient Intake Following Initiation of A Low FODMAP Diet in Patients with Irritable Bowel Syndrome? [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492607846495982

    APA Style (7th edition)

  • Al-Muhanna, Khawlah. Are There Differences in Nutrient Intake Following Initiation of A Low FODMAP Diet in Patients with Irritable Bowel Syndrome? 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1492607846495982.

    MLA Style (8th edition)

  • Al-Muhanna, Khawlah. "Are There Differences in Nutrient Intake Following Initiation of A Low FODMAP Diet in Patients with Irritable Bowel Syndrome?" Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492607846495982

    Chicago Manual of Style (17th edition)

osu1492607846495982
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This open access ETD is published by The Ohio State University and OhioLINK.