Nutrition Commons^™

Youth Agricultural Engagement And Its Association With Dietary Diversity, Household Food Insecurity, And Nutritional Status In Southwest Nigeria, Sherif Olasoji

All Graduate Theses and Dissertations, Fall 2023 to Present

Youth remain underserved in nutrition research, policy, and programming despite being an integral part of the food systems. While the nutrition-sensitive agriculture framework has been established, there is limited evidence demonstrating how youth engagement in agriculture can serve as a pathway to improve nutritional outcomes. The study assessed youth agricultural engagement and its association with household dietary diversity, household food insecurity, and nutritional status in southwest Nigeria.

Using a cross-sectional design, data on socio-demographic characteristics, agricultural engagement, dietary diversity, household food insecurity, body mass index, and skin carotenoids were collected from 143 youth aged 15 to 35 from Ekiti, Osun, …

Bridging Animal Production And Human Nutrition: How Production Ecology Shapes The Nutritional Quality Of Terrestrial Animal Foods And Human Omega-3 Status, Joseph Vinod Varre

All Graduate Theses and Dissertations, Fall 2023 to Present

The question at the center of this dissertation is simple: does the way food is produced change the quality of the food itself in ways that matter for human health? Across a series of studies on bison meat, eggs, and human dietary intervention, the answer was yes. This work began with a broad look at the modern food system and the nutritional consequences of industrialized diets. In particular, it focused on the growing imbalance between omega-6 and omega-3 fatty acids in the Western diet. This balance matters because omega-3 fats support heart, brain, and immune health, and diets high in …

Incorporation Of Dairy Ingredients Into Chocolate And Caramel: Impact On Product Quality, Shelf Life, And Consumer Acceptance, Taelie Kennedy

All Graduate Theses and Dissertations, Fall 2023 to Present

Incorporating next-generation milk powders like milk protein isolate (MPI) and milk protein concentrate (MPC) into confections can increase protein content. Milk permeate powders (MPP) are byproducts of the production of high-protein dairy ingredients (MPC and MPI). Typically considered waste streams, growing awareness of sustainability has increased interest in the use of MPP in food. There is minimal research on the use of these ingredients in confections. 

This study evaluated the effects of incorporating milk protein powders and MPP into chocolate and the effects of replacing granulated sugar with MPP in caramel on product quality and consumer acceptance. 

Chocolate batches were …

The Effects Of Psychological Stress On Gut Health In Mice Fed Either A Healthy Diet Or The Total Western Diet, David Keenan Thomas Prescott

All Graduate Theses and Dissertations, Fall 2023 to Present

The Total Western Diet (TWD), a rodent diet designed to model the typical American dietary pattern, has been shown to worsen inflammation and colitis severity in mice. Psychological stress has also been associated with increased intestinal inflammation, barrier dysfunction, and alterations to the gut microbiome. The goal of this study was to determine whether combining the TWD with psychological stress would further worsen colitis severity and alter the gut microbiome. To investigate this, mice were fed either a healthy control diet or the TWD and exposed to psychological stress using a social disruption stress model. Colitis was induced using established …

Formulation And Analysis Of Physiochemical And Sensory Properties Of Ready-To-Mix Whey Protein Phospholipid Concentrate Beverage, Chris Jaquin

All Graduate Theses and Dissertations, Fall 2023 to Present

Whey protein phospholipid concentrate (WPPC) is commonly recovered as a coproduct in filtration process whose aim is to obtain whey protein isolate (WPI) from whey protein concentrate (WPC). Whey protein phospholipid concentrate is high in milk fat globule membrane (MFGM), which has been shown in rodent and human studies to have a variety of physiological benefits, including an increase in exercise capacity. Whey protein phospholipid concentrate is currently considered as an underused dairy coproduct, with most of it either being disposed of or used as animal feed. This research consisted of incorporating WPPC in a protein shake–like beverage at a …

The Gut Microbiome, The Gut-Brain Axis, And College Student Well-Being, Idi Mckay

University Honors Theses

This literature review examines how diet, stress, environmental exposure, and food accessibility may influence college students' mental health and academic performance through the gut microbiome and the Gut-Brain Axis (GBA). Current microbiome research often focuses on early childhood development, clinical disease populations, or older adults, while overlooking college-age students who experience significant social, environmental, and biological transitions. College students frequently face food insecurity, irregular eating patterns, chronic stress, inconsistent sleep schedules, and reduced access to nutrient-dense foods, all of which may influence microbial diversity and overall gut health.

This thesis explores how modern campus environments and lifestyle factors may contribute …

Title Page And Abstract: Diet Quality And Sustainability Based On Nut Intake Among Free-Living Adults, Raquel Aurora Martínez

Loma Linda University Electronic Theses, Dissertations & Projects

Background: There is increasing interest in dietary patterns that support both human and planetary health. Plant-forward dietary patterns commonly promoted within sustainability frameworks frequently include nuts. Despite concerns regarding resource use, particularly water demands, nuts may contribute to improved diet quality and sustainable dietary behaviors.

Objectives: To examine whether diets characterized by higher nut intake are associated with dietary quality, adherence to sustainable dietary patterns, and food-related sustainability behaviors among free-living adults.

Methods: Cross-sectional analyses were conducted using data from an online validated semi-quantitative food frequency questionnaire integrated with sustainability-related survey items. Energy-adjusted nut intake was categorized …

Independent And Combined Effects Of Early-Life Iron Deficiency And Antibiotic Exposure On Growth And Hematological Outcomes In A Piglet Model, Ginger M. Fitzpatrick

Master's Theses

Iron deficiency (ID) affects over 2 billion individuals globally. Children under 5 are at increased risk of ID due to rapid growth and are especially vulnerable to its negative consequences because of iron’s essential role in cognitive development and immune maturation. ID is the leading cause of iron deficiency anemia (IDA), with IDA affecting approximately 40% of children in this age group. Antibiotic (abx) exposure is also prevalent during early life and may disrupt growth and through gut dysbiosis, with increasing use posing additional risk in younger populations. Geographically, there is overlap in regions with high anemia prevalence and those …

Examining The Ligands, Location, And Function Of Toll-Like Receptor 10, Kiefer Keanu Tam

Master's Theses

Toll-like receptors are a class of innate immune pattern recognition receptors that detect pathogen-associated molecular patterns and regulate downstream inflammatory responses. Toll-like receptor 10 remains the only human TLR whose ligand specificity, cellular localization, and immunological function are not fully defined. Emerging evidence suggests that TLR10 may play an anti-inflammatory role and can heterodimerize with TLR2 to modulate immune signaling. Previous studies from our laboratory demonstrated that stimulation with heat-killed Mycobacterium tuberculosis promotes TLR2-TLR10 heterodimerization and trafficking to the cell surface. In this study, we expanded our ligand panel to include additional gram-positive bacteria, particularly anti-inflammatory probiotic species, to further …

Co-Designing Sweettexts: An Intake-Driven Sms Intervention To Reduce Free-Sugar Consumption In Preschoolers, Bervelyn Asantewaah Addo

Theses - ALL

Abstract Introduction: As early childhood represents a crucial window for establishing lifelong dietary patterns, excessive intake of sugary foods and beverages during this period may result in long-term adverse health outcomes. Intake levels continue to exceed recommended guidelines, and disparities within and across race and low-income population groups persist. Given these disparities, targeted interventions developed to consider the unique needs, preferences, and cultural differences in diverse population groups are essential to enhance health and well-being. The purpose of this research was to develop the content of the "SweetTexts", a text-message-based intervention to reduce the intake of free sugar among preschool-aged …

Re-Evaluating The Safety Of Erythritol: A Critical Review Of Emerging Evidence, Kaitlyn B. Kirchner

Honors Thesis

Erythritol, a commonly used non-nutritive sweetener, has gained popularity as a sugar alternative due to its low caloric value and minimal effect on blood glucose levels; however, emerging research has raised questions about its overall safety. This literature review critically evaluates current peer-reviewed evidence on the effects of erythritol on the cardiovascular and gastrointestinal systems. Findings indicate that erythritol is generally well tolerated in the gastrointestinal tract, with fewer adverse effects than other sugar alcohols due to its rapid absorption and limited fermentation, although symptoms may be dose-dependent and influenced by co-ingestion with other carbohydrates. In contrast, evidence related to …

Analyzing Sun Bucks Program Experience Among Southwestern Pennsylvania Families With Just Harvest, Olivia Mae Gifford

Public Health Capstone Projects

1. Objectives: This project primarily seeks to identify the common barriers preventing vulnerable families from accessing the SUN Bucks Program. The SUN Bucks program is an optional program through the United States Department of Agriculture that works in conjunction with the state of Pennsylvania in order to provide school-aged children families with supplemental funds to supply greater nutrition during the summer months. This research supports the work of a local non-profit, Just Harvest, in order to better inform their advocacy and outreach efforts as they fight against food insecurity in Western Pennsylvania.
2. Methods: All data was collected electronically via a …

Assessing The Risk Of Low Energy Availability In Ncaa Division Iii Female Soccer Players, Emma C. Sturts

Masters Theses/Capstone Projects

Low Energy Availability (LEA) can occur when an athlete’s energy intake is insufficient to meet the physiological demands of training as well as normal physiological functions. Female soccer players may be at an increased risk of developing LEA due to the high exercise energy expenditure paired with decreased energy intake. The purpose of this study is to assess the prevalence of LEA among Division III female soccer players. Division III female soccer players (n = 11) completed the Low Energy Availability in Females Questionnaire (LEAF-Q). 45.5% (n = 5) of the participants were classified as “At Risk” for LEA. Of …

Dfend: A Nutrition Education Intervention To Improve Food Budgeting, Shopping, And Meal Preparation Skills Among Adults In Arkansas, Samantha K. Edwards

Human Nutrition and Hospitality Management Undergraduate Honors Theses

Preventive strategies targeting modifiable lifestyle factors related to food, nutrition, and health are needed as chronic health conditions continue to rise. Nutrition literacy refers to having the knowledge and skills needed to obtain, understand, and apply nutrition information to make informed dietary decisions. Without adequate nutrition education and food security, vulnerable populations are at risk of malnutrition and poor dietary behaviors. Educational interventions that increase food literacy can help improve dietary choices and food selection skills.

The purpose of this creative project was to develop a nutrition education toolkit for Extension agents to implement among rural populations with low health …

Prevalence Of Disordered Eating Behaviors In Junior And Senior Human Nutrition And Dietetics Students At The University Of Arkansas, Grace P. Carroum, Mallori Roberts

General Human Environmental Sciences Undergraduate Honors Theses

Disordered eating (DE) is a prevalent concern among college students and may be particularly relevant among nutrition and dietetics students due to their academic focus on food, weight, and health. This study aimed to assess the prevalence and frequency of disordered eating behaviors among junior and senior Human Nutrition and Dietetics students at the University of Arkansas using item-level responses from the Eating Disorder Examination Questionnaire Short Form (EDE-QS). A quantitative, cross-sectional design was employed, and data were collected via an anonymous online survey (n = 11). Descriptive statistics were used to examine the frequency of specific behaviors. Overall, most …

Precision To Protein: Comparative Characterization Of Printability, Physicochemical, And Nutritional Properties Of Cricket, Pea, And Whey Proteins In 3d-Printed Nutrition Bars, Sophia Hinkebein

Food Science Undergraduate Honors Theses

Protein is a priority nutrient in the American diet, being fueled by the demands of weight loss drugs, diet culture, and new dietary guidelines. However, meeting these elevated protein goals sustainably requires diversifying beyond standard sources like whey protein isolate. 3D printing offers an opportunity to present a variety of protein sources in a palatable, customized, and consumer-acceptable format. In this study, 3 protein sources (cricket, whey, and pea), were optimized within food inks for 3D printing. Optimization involved different hydration levels, with whey requiring 7 grams of added water, cricket 22 grams, and pea the most at 47 grams. …

At The Intersection Of Science And Sustainability: A Qualitative Study Of Food Scientists' Personal And Professional Perspectives, Srushti Parikh

Theses, Dissertations and Culminating Projects

Sustainable food systems require not only technological innovation but a more profound understanding of the professionals involved in the field. Even though the topic of sustainability is currently gaining importance throughout the food industry, the real expertise of food scientists is under-researched. PURPOSE: The purpose of this study is to explore food scientists' perspectives on sustainability, how these perceptions influence the way they pursue their careers, and how they view their impact in the larger sustainability agenda of the food industry. METHODS AND MATERIALS: This study captured detailed insights of 22 food scientists’ perspectives through qualitative methods. Food scientists in …

Analysis Of The Effects Of Astaxanthin On Human Colorectal Cancer Cells, Kara A. Walters

Theses/Capstones/Creative Projects

Astaxanthin (AXT) is an antioxidant carotenoid that is produced by the microalgae Haemococcus pluvialis. This supplement is best known for its potential health benefits including anti-inflammatory, antitumor, immunomodulatory, anticancer and antidiabetic activities. Astaxanthin is marketed as an oral dietary supplement and is widely used in the nutraceutical industry as well as a coloring agent in the food industry. Since Astaxanthin has been increasingly popular as a dietary supplement, cytotoxicity is relevant to consumer exposure. Obtaining the IC50, the concentration that inhibits 50% of cell growth, is important to find how Astaxanthin may interact with cancer, and this can be found …

Production Of Hydrolyzed Lactose Syrup From The Acid Whey, Aubrey Jean Arbon

All Graduate Theses and Dissertations, Fall 2023 to Present

Acid whey has gained significant attention within the dairy industry due to its complex matrix and the processing challenges. This by-product contains lactose that can be isolated, hydrolyzed, and further processed to produce hydrolyzed syrup. To optimize lactose utilization, it is essential to fine-tune the kinetics of the β-galactosidase enzymes used for lactose hydrolysis. To analyze sugars in acid whey, and LC-MS-based chromatographic method was developed. Once the method was developed, the kinetics of β-galactosidase were optimized with respect to enzyme concentration, pH, and temperature. The goal was to achieve the highest possible lactose hydrolysis. The hydrolyzed acid whey was …

Food-Form Delivery Of Spore-Forming Probiotics As An Alternative To Gavage In Animal Models, Aubreyona Faith Migliori Skalka

All Graduate Theses and Dissertations, Fall 2023 to Present

Western dietary patterns are characterized by nutrient-poor, calorie-rich diets and have been linked to poor health outcomes and gut inflammation phenotypes. Probiotics are often taken to support gut health, but many beneficial bacteria do not survive transport through the digestive system to produce any effect. Spore-forming bacteria, such as Bacillus coagulans, are more resilient due to their hardy outer coat which aids in survival through many obstacles encountered in the gastrointestinal tract, including acidic stomach conditions. In research studies, probiotics are usually given to mice through a procedure called oral gavage, where a tube is used to deliver the …

Understanding Impact Of Redox Potential On Microbial Community Of Cheddar Cheese During Aging, Abrianna Y. Paez

All Graduate Theses and Dissertations, Fall 2023 to Present

Cheese ripening is a complex process that shapes the flavor, texture, and overall quality of cheese, yet many of the factors that control how these changes occur are still not fully understood. One factor that may play an important role is redox potential, which describes the balance between oxidation and reduction reactions happening inside the cheese. These reactions can influence both the activity of bacteria and the chemical processes that create flavor. Past efforts to control redox using chemical additives often harmed beneficial bacteria, limiting their usefulness.

In this study, we tested the use of mechanical disruption and gas exposure …

Impact Of Inhibiting Mitochondrial Calcium Uptake On Calcium Homeostasis And Postmortem Metabolism In Porcine Muscle, Fatema Rahaman Mishu

All Graduate Theses and Dissertations, Fall 2023 to Present

After harvesting the animal, pork muscle continues to undergo changes as it turns from muscle into meat. During this early period, the muscle uses up energy and produces acid, which lowers pH and can affect important quality traits such as color and how well the meat holds water. A key driver of these early changes is calcium, a natural mineral inside muscle cells that helps control contraction and energy use. In this study, we tested whether mitochondria (the cell’s “powerhouse”) help control calcium after harvest and, in turn, influence early postmortem changes in pork. We used a research compound (DS16570511) …

Exploring The Correlation Between Malnutrition And Food And Nutrition Insecurity In Inflammatory Bowel Disease, Heather Burr

All Graduate Theses and Dissertations, Fall 2023 to Present

Inflammatory Bowel Disease (IBD) may increase the risk of malnutrition because of nausea, vomiting, diarrhea and restrictive eating. In addition, patients with IBD may experience food and nutrition insecurity. Therefore, we conducted an online survey to assess risk of malnutrition and food and nutrition insecurity among adult patients with IBD in outpatient and community settings. Patients were recruited between July and December 2025, aiming to reach adults in the Rocky Mountain Region diagnosed with IBD. Data collected included demographics, health-related factors, risk of nutrition insecurity, risk of food insecurity, and barriers and facilitators to dietary management of IBD.

Fifty-seven patients …

Effects Of Weight Loss Medications In Combination With Psychotropic Medications, Emily A. Hoffman

Electronic Theses, Projects, and Dissertations

Background and aims: The obesity epidemic has been well-documented and weight loss medications are becoming increasingly popular. Patients with psychiatric conditions often suffer metabolic side effects from psychotropic medications and are often prescribed weight loss medications to mitigate these side effects. When treating patients on these medications concurrently, understanding their potential side effects is essential for developing an effective care plan. Registered dietitian nutritionists (RDNs), pharmacists, and mental health professionals working in mental health facilities should be aware of these potential side effects to better care for their patients.

Methods: After completing a thorough literature review, a handbook …

Tips For Health Care Practitioners: A Guide For Adolescent Obesity, Regina Santana

Electronic Theses, Projects, and Dissertations

Adolescent obesity continues to be a significant public health concern that is associated with long term physical consequences. The purpose of this project was to develop an evidence based, user friendly guidebook that supports healthcare professionals in the education of adolescents with obesity and their families. A structured literature review development process was used to inform the current development of the guidebook. The guidebook includes components of obesity management such as nutrition and physical activity recommendations. The validity of the content was established through the evaluation of five healthcare professionals that include registered dietitians and licensed therapists. The guidebook was …

Un-Packing The Pantry: Evaluating And Addressing Nutritional Gaps In Full Circle Food Pantry Service, Gweneth J. Keith-Powell

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Arkansas has the highest food insecurity rate in the U.S., and college students are disproportionately food insecure. Food insecure populations tend to have worse nutrition and face poorer health outcomes, exacerbating the economic disparities they already face. The purpose of this study was to analyze specific food pantry usage trends, healthy diet access barriers, and processed food consumption drivers of Full Circle Food Pantry clients at the University of Arkansas as they related to food insecurity and nutrition disparities, as well as design a targeted project to improve nutation in an underserved client demographic. Findings supported existing literature regarding lower …

Effect Of Agroecological Feeding Systems Of Dairy Cattle On The Nutritional Composition Of Milk, Sree Bhavya Immadi

All Graduate Theses and Dissertations, Fall 2023 to Present

How food is produced can influence both its nutritional quality and its impact on the environment. In recent years, regenerative (agroecological) farming practices have gained attention for their potential to improve soil health, biodiversity, and the nutritional value of foods. In dairy production, these practices often involve growing more diverse forage crops, reducing soil disturbance, and relying less on monoculture-grown feed rations. However, there is still limited real-world evidence showing how these practices affect the nutritional composition of milk produced on commercial dairy farms.

This dissertation explores how regenerative feeding and feed production practices influence the nutritional quality of milk, …

A Functional Nutrition Literature Review For Brain Fog And Adhd-Like Symptoms In Adults, Natalie Elisani Aldahondo-Matos

Department of Nutrition Student Projects

Attention-deficit/hyperactivity disorder (ADHD) and ADHD-like symptoms, such as difficulty concentrating, mental fatigue, and problems with executive functioning, are increasingly recognized in adults. Although medication is commonly used to manage ADHD, there is growing interest in whether nutrition may also play a role in supporting brain function and attention. Several nutrients involved in brain health including omega-3 fatty acids, vitamin B12, magnesium, iron, and choline  have been suggested as potential contributors to cognitive performance and attention. However, the research examining the connection between diet and ADHD symptoms is still limited and sometimes shows mixed results.

The purpose of this project was …

Ethnicity, Culture, And The Epidemiology Of Eating Disorders, Rebecca Atwell

Honors Theses

This systematic literature review addresses the research question: How does culture affect eating disorders? It examines the role of ethnicity and culture in shaping the prevalence, symptom presentation, and treatment of eating disorders across diverse populations. Although eating disorders have traditionally been studied in Western, predominantly White populations, growing evidence suggests that cultural norms, ethnic identity, globalization, and exposure to Western ideals significantly influence both the development and expression of disordered eating behaviors. Twenty peer-reviewed studies published between 2000 and 2024 were included. These studies were identified through systematic searches of PubMed, Scopus, Web of Science, and PsycINFO and selected …

How Pollinator Populations Can Impact Chronic Disease Risk, Kylee Cubbison

Honors Projects

This project investigates how pollinator populations can impact chronic disease risk. Pollinator populations are declining, which can have serious implications for human health. Declining pollinator populations can limit healthy food production and affordability. Poor nutrition is a major risk factor for most chronic diseases. Less healthy food available for people to consume can negatively impact diets and increase the risk of developing chronic diseases. This project aims to address a potential gap in research existing on this specific topic regarding pollinator populations and human chronic disease risk. A brochure targeted towards educating the general public on this topic was created …