16 Clinical Trials for Various Conditions
This study will address the following aims: Aim 1 (primary): Conduct a pilot RCT to evaluate the feasibility, acceptability, enrollment, and retention rates of adult-child pairs after a 12-week family-centered, non-calorie restricted whole foods diet. Feasibility: ≥80% participant retention and completion of study outcome measures. Acceptability: ≥75 adult diet satisfaction via survey report and/or perceived diet satisfaction via focus groups. Aim 2: Conduct a pilot RCT to evaluate the preliminary effectiveness of a non-calorie restricted whole foods diet on adult HbA1c at 12 weeks and adult/child diet quality during the 12-week intervention. Aim 2a: Evaluate intervention effects on HbA1c measures in adults with prediabetes. Hypothesis 2a: Adults randomized to the treatment group will have lower HbA1c measures at 12 weeks than those in the control group. Aim 2b: Evaluate intervention effects on the diet quality (via the 2020 HEI) of adults and children. Hypothesis 2b: Adults and children randomized to the treatment group will have a higher diet quality score during the 12-week intervention period compared to adults and children in the control group. Aim 3: Conduct family focus groups to understand how SDOH and individual/family needs and preferences may be perceived barriers or facilitators of diet adherence.
Based on the findings of our formative work, conduct a one-year intervention among African American Adults using revised culturally tailored materials to examine differences in Healthy Eating Index (HEI) and type 2 diabetes (T2DM) risk factors among participants (n=198) randomized to one of the 3 dietary patterns: 1) Healthy U.S.-Style Eating Pattern, 2) Healthy Mediterranean-Style Eating Pattern, and 3) Healthy Vegetarian Eating Pattern.
The goal of this project is to use a two-stepped study to examine both the adoption of the three dietary patterns as presented by the United States Dietary Guidelines (USDG) and testing of a refined, culturally tailored one-year intervention examining the three diet patterns. For this study, African American adult participants with overweight/obesity and ≥three type 2 diabetes (T2DM) risk factors will be recruited to participate in this two-step study. This present study is for our Step 1: formative pilot work to culturally-tailor a dietary intervention of the three healthy eating patterns presented by the USDG for 12 weeks: 1) U.S.-Style, 2) Mediterranean, or 3) Vegetarian.
This study, at the Western Human Nutrition Research Center (WHNRC), will focus on whether or not achieving and maintaining a healthy body weight is the most important health promoting recommendation of the Dietary Guidelines for Americans (DGA).The investigators hypothesize that improvement in cardiometabolic risk factors resulting from eating a DGA style diet will be greater in people whose energy intake is restricted to result in weight loss compared to those who maintain their weight. The investigators further propose that during a state of energy restriction, a higher nutrient quality diet such as the DGA style diet pattern, will result in greater improvement in cardiometabolic risk factors compared to a typical American diet (TAD) pattern that tends to be lower nutrient quality (more energy-dense and less nutrient-rich.)
The WORLD study is a single-center, year-long randomized controlled trial in free-living women. Participants were randomly assigned to follow either a lower-fat (LF) diet or a moderate-fat (MF) diet for weight management in a parallel-arm design. The two phases of the study were a weight-loss phase (phase 1) and a weight-maintenance phase (phase 2) (Figure 1). During phase 1, months 1 through 4, participants consumed a hypo-caloric diet consistent with the 2005 Dietary Guidelines in the free-living environment. During phase 2, months 5 through 12, participants shifted into weight maintenance. It was hypothesized that a weight-loss intervention at the extremes of dietary fat recommendations of the 2005 Dietary Guidelines would be equally effective for weight loss while achieving comparable nutrient adequacy. Also, Overall, the lower-fat and moderate-fat diets would both be nutritionally adequate, based on the Healthy Eating Index.
The purpose of this research is to better understand people's health and diet knowledge, beliefs, attitudes, and practices. The researchers will use this information to implement better strategies to help Americans maintain more nutritious diets.
This randomized clinical trial aims to evaluate the effects of consuming two different doses of pulses (1.5 cups/week or 3 cups/week) in individuals with baseline intake below 1.5 cups/week, compared to a control group receiving standard nutrition education based on the United States Department of Agriculture's (USDA) My Plate guidelines. The main question the Pulses study aims to answer is: • What is the effect of increasing pulse consumption (in a dose-response manner) on specific cardiometabolic risk factors, including LDL-C, CRP, HBA1C, and blood pressure compared to standard nutrition education? For secondary outcomes, this study aims to answer the following: • Does increased pulse consumption improve the following: overall serum lipid profile (Total cholesterol (TC), HDL-C, Triglycerides (TG), diet quality (measured by the Healthy Eating Index), and participants self-reported satisfaction with life (SWLS) and Satisfaction with Food-related Life (SWFoL). All participants will attend biweekly classes and food demonstrations. The pulses groups will learn to prepare various pulse-based recipes, while the control group will receive guidance on preparing healthy meals following the USDA MyPlate recommendations.
To determine if consumption of different diet plans that both are nutritionally-adequate and provide energy to maintain body weight, alters fasting insulin concentrations, shifts other common clinical markers of metabolic disease risk, and affects metabolomic profiles that reflect glucose, lipid, and amino acid metabolism.
The purpose of this study is to validate the non-invasive tool, resonance Raman spectroscopy for assessing vegetable and fruit consumption.
The purpose of the challenge is to see if we, as the nutrition experts, can follow the dietary and physical activity guidelines promoted to the public. We have an opportunity to "practice what we preach." Scientific evidence demonstrates, knowledge is not enough to change ones'behaviors. It is through positive approaches and lifestyle changes that behavior can be altered. By experiencing the planning, work, and motivation required to make lifestyle changes we can all be better clinicians.
The Century Trial is a single center Phase III randomized study sponsored by the Albert Weatherhead III Foundation and conducted by Dr. K. Lance Gould. The study hypothesis is that a combined image-treatment regimen of PET + comprehensive program of lifestyle modification and lipid lowering drugs to target lipid level will result in an improved cardiovascular risk score when compared to current standard optimal medical therapy, potentially resulting in a lower rate of death, non-fatal myocardial infarction (MI) and revascularization procedures during long term follow-up when compared with current standard of care. If our hypothesis is correct, we will not only improve our ability to prevent and treat CAD but we will also illustrate that, even with the expenses of behavioral interventions and imaging techniques, we can be very cost effective. This information may help patients at risk or with known CAD to obtain insurance coverage to prevent the disease as well as providing a more effective way of treating it.
This study will measure nonheme iron absorption from each of the 7 daily MyPyramid menus. Such measurements will confirm whether modifications are needed to meet dietary iron recommendations and will provide data useful for validation algorithms to calculate dietary iron bioavailability.
The purpose of this study is to determine the effectiveness of recommending either a Paleolithic based diet or the United States Department of Agriculture MyPlate guidelines with or without exercise on physical conditioning, hormones related to energy metabolism, body composition, resting energy expenditure, blood biomarkers, and urine in young, adult females.
Measuring the impact of a guideline-based nutrition digital tool in heart failure patients
The Lower Mississippi Delta (LMD) population is characterized by high levels of overweight and obesity, which are the result of long-term disruptions in energy imbalance where dietary energy intake has exceeded energy expenditure associated with physical activity. To address this issue, the overall goal of this project is to determine ways in which the U.S. Department of Health and Human Services and U.S. Department of Agriculture Dietary Guidelines for Americans (2005) physical activity recommendations can be effectively adapted for the LMD population. Phase I of this study was completed in early 2011.
The purpose of this study is to determine if FDA approved food safety guidelines are equivalent to a low bacterial diet (the neutropenic diet) with respect to the acquisition of infections during neutropenia in a sample of pediatric cancer patients.