Dahl, Wendy J., Ph.D.

Associate Professor

Contact Information

572 Newell Dr.
FSHN Building
Room 207
P.O. Box 110370
Gainesville, FL 32611-0370

Phone: 352.392.1991 ext. 224
Email: wdahl@ufl.edu
Website:  mypureedfoods.com


  • Ph.D. University of Saskatchewan; Nutrition, 2005

Research Interests

Dr. Dahl’s current research interests focus on examining the role of fiber and prebiotics in medical nutrition therapy, specifically the role of isolated fibers on various outcomes of chronic kidney disease. She collaborates extensively on studies related to effects of fiber, prebiotics and probiotics on overall health and wellness, gastrointestinal health, immunity and their relationship to gut microbiota. Dr. Dahl is also actively involved in the scholarship of teaching and learning, exploring ways to improve the undergraduate student’s learning experiences.


Dr. Dahl’s primary extension program focusses on food and nutrition issues of the frail elderly, specifically malnutrition and dysphagia management. She has been involved in product development, sensory testing and textural standards for texture-modified foods, nutrition and menu standards for long term care facilities, and leads educational programming to improve the nutrient density, acceptability and texture of foods intended for the frail elderly. In addition, she provides consultation to industry and health care regarding food applications for functional fiber sources and currently provides outreach to industry, food retailers, health professionals and consumers in the development and adoption of wellness-promoting foods and nutrition strategies. Link to EDIS Extension Publications:  http://edis.ifas.ufl.edu/topic_a19618954

Classes Taught


HUN4445 Nutrition and Disease 1


DIE6241 Advanced Medical Nutrition Therapy 1
DIE6242 Advanced Medical Nutrition Therapy 2

Recent Publications

Langkamp-Henken B, Rowe CC, Ford AL, Christman MC, Nieves, Jr. C, Khouri L, Specht GL, Girard S-A, Spaiser SJ, Dahl WJ. 2015. Bifidobacteria bifidum R0071 resulted in a greater proportion of healthy days and a lower percentage of academically stressed students reporting a day of cold/flu: a randomized, double blind, placebo-controlled study. British Journal of Nutrition, 113(3), 426-34

Hanifi A, Culpepper T, Mai V, Anand A, Ford AL, Ukhanova M, Christman M, Tompkins TA, Dahl WJ. 2015. Evaluation of Bacillus subtilis R0179 on gastrointestinal viability and general wellness: a randomized, double-blind, placebo-controlled trial in healthy adults. Beneficial Microbes, 6(1), 19-27.

Radford A, Dahl WJ. 2014. Identifying education needs of WIC recipients regarding dry beans. Journal of the National Extension Association of Family & Consumer Sciences, 9, 61-67.

Dahl WJ, Hanifi A, Zello GA, Tyler RT. 2014. Gastrointestinal tolerance to daily intake of canned chickpeas. Canadian Journal of Dietetic Practice and Research, 2014, 75(4): 218-221.

Salmean YA, Segal MS, Palii AP, Dahl WJ. 2014. Fiber supplementation lowers plasma p-cresol in chronic kidney disease patients. Journal of Renal Nutrition.  Published online 11/4/2014. http://www.jrnjournal.org/article/S1051-2276(14)00164-2/abstract

Lepore JR, Sims C, Gal NJ, Dahl WJ. 2014. Acceptability and identification of scooped versus molded puréed foods. Canadian Journal of Dietetic Practice and Research, 75(3), 145-147.

Radford A, Hughes C, Langkamp-Henken B, Christman MC, Jonnalagadda S, Boileau T, Thielecke F, Dahl WJ. 2014. Whole grain intake in middle school students achieves Dietary Guidelines for Americans and MyPlate recommendations when provided as commercial products: A randomized trial. Journal of the Academy of Nutrition and Dietetics, 114(9), 1417-1423.

Dahl WJ, Wright AR, Specht GJg, Christman M, Mathews A, Meyer D, Boileau T, Willis H, Langkamp-Henken B. 2014. Consuming foods with added oligofructose improves stool frequency: A randomized trial in healthy young adults. Journal of Nutritional Science. Vol. 3. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9251172&fulltextType=RA&fileId=S2048679014000068

Dahl WJ, Ford AL, Gal NJ. 2014. Food and nutrition practices and education needs in Florida’s adult family care homes. Journal of Extension. 52(1). Available at: http://www.joe.org/joe/2014february/rb4.php

Salmean YA, Zello GA, Dahl WJ. 2013. Foods with added fiber improve stool frequency in individuals with chronic kidney disease with no impact on appetite or overall quality of life. BMC Research Notes, 6:510. Available at: http://www.biomedcentral.com/1756-0500/6/510

Dahl WJ, Ford AL, Whiting SJ. 2013. Visiting faculty from abroad: contributing to global competency of nutrition students at Hawassa University, Ethiopia. NACTA Journal, 57(3a), 111-114.

Dahl WJ, Ford AL, Turner RE. 2013. Perspectives on agricultural and life sciences undergraduate research experience. NACTA Journal, 57(3). Available at: http://www.nactateachers.org/component/attachments/download/2041.html

Kebebu A, Whiting SJ, Dahl WJ, Abegaz K, Henry CJ. 2013. Formulation and acceptability testing of a complementary food with added broadbean (Vicia faba) in southern Ethiopia. African Journal of Food, Agriculture, Nutrition and Development, 13(3). Available at: http://www.ajfand.net/Volume13/No3/Afework13035.pdf

Viveky N, Dahl WJ, Whiting SJ. 2013. Should an anti-inflammatory diet be used in long-term care homes? Healthy Aging Research, 2, 1-9.

Salmean Y, Segal MS, Langkamp-Henken B, Canales M, Zello GA, Dahl WJ. 2013. Foods with added fiber lower serum creatinine in patients with chronic kidney disease. Journal of Renal Nutrition, 23, E29-E32.

Langkamp-Henken B, Nieves, Jr. C, Culpepper T, Radford A, Girard S-Ag, Hughes C, Christman MC, Mai V, Dahl WJ, Boileau T, Jonnalagadda SS, Thielecke F. 2012. Fecal lactic acid bacteria increased in adolescents randomized to whole-grain but not refined-grain foods, whereas inflammatory cytokine production decreased equally with both interventions. Journal of Nutrition, 142, 2025-32. 

Dahl WJ, Foster LM, Tyler RT. 2012. Review of the health benefits of peas (Pisum savitum L.). British Journal of Nutrition, 108, S3-S10.

Foster LM, Tompkins T, Dahl WJ. 2011. A comprehensive post-market review of studies on a probiotic product containing Lactobacillus helveticus R0052 and Lactobacillus rhamnosus R0011. Beneficial Microbes, 2(4), 319-334.

Dahl WJ. 2011. Meeting the vitamin D requirements of the elderly. AgroFood Industry Hi-tech, 22(4), 41-43.

Dahl WJ, Niebergall EJ, Owen RJ. 2011. Implications of fiber inadequacy in the ketogenic diet: A case study. Infant, Child and Adolescent Nutrition, 3(5), 288-290.

Hughes C, Davoodi-Semiromi Y, Colee J, Culpepper T, Dahl WJ, Mai V, Christman M, Langkamp-Henken B. 2011. Galactooligosaccharide supplementation reduces stress-induced gastrointestinal dysfunction and days of cold or flu: a randomized, double-blind, controlled trial in healthy university students. American Journal of Clinical Nutrition, 93, 1305-1311.

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