70 Clinical Trials for Various Conditions
The goal of this clinical trial is to is to determine the effects of baked potato with the skin (BP) + nutrition education focused on adherence for a Mediterranean Dietary Pattern (MEDNE) on glycemic control, cardiometabolic health, and dietary quality in individuals with pre-diabetes from different demographic backgrounds. The main questions it aims to answer are: * Does BP+MEDNE contribute to improvements in indices of glycemic control, vascular function, blood lipids, inflammation/oxidative stress, and body composition? * Does BP+MEDNE contribute to improvements to overall dietary intake and quality? Researchers will compare BP+MEDNE to MEDNE alone to see if BP+MEDNE can improve glycemic control, cardiometabolic health, and dietary quality in individuals with pre-diabetes from different demographic backgrounds. Participants will: * Be asked to come to the study site initially for a Screening Study Visit to confirm eligibility. * Be asked to come the study site for a Pre-Baseline and Pre-12-Week Study Visit (one week prior to Baseline and 12-Week Study Visits) for placement of placement of a continuous glucose monitor and wearable devices to be removed at Baseline and 12-Week Study Visits. * Be asked to come to the study site for Baseline, 6- and 12-Week Study Visits for assessments of glycemic control and cardiometabolic health. * Be asked to complete 3-Day Food Records throughout the 12 week study period for assessment of dietary quality (5 total) * Receive pre-recorded MEDNE ( which can be accessed via computer device/ipad/smartphone) after Baseline and 6-Week Study Visits. * If randomized to the BP+MEDNE group, participants will receive pre-prepared baked potatoes with the skin for the 12-week study period (every 3 weeks) at Baseline and 6-Week Study Visits and asked to come to the study site for picking up the pre-prepared baked potatoes at weeks 3 and 9 of the study period.
The study aims to investigate whether following a controlled Mediterranean-style diet prior to robotic-assisted radical prostatectomy surgery in patients diagnosed with prostate cancer affects fasting insulin levels and other values that can be measured in blood and tissue samples from surgery.
In this study, participants will have 3 or 4 total study visits over approximately 10 total weeks. There is a two week medication washout period in between the 1st and 2nd visits. This washout only applies if participants are using a prohibited psoriasis medication (such as topical steroids or oral psoriasis medications, like methotrexate). During the washout period, participants will have to stop the prohibited medication(s). If participants are not using any prohibited medications, then the 1st and 2nd visits can be combined and participants will only have 3 total in-person visits. Participants will be randomly assigned (by chance; like flipping a coin) to either the Mediterranean Diet or no dietary intervention. After 4 weeks on the diet, participants will start treatment with either Anti-IL-17 or Anti-IL-23 therapy. The biologic treatments will prescribed by the participants regular dermatologist and not as a part of the study.
This is a single-center, proof-of-concept pilot study which uses a cross-over design to compare two dietary interventions/treatments: Western Diet (WD) vs Mediterranean (MD) and impact on quality-of-life parameters in AIH. Participants will receive both treatments through two phases and will be divided into two groups.
Preclinical data indicate that very low carbohydrate ketogenic diets (KD) may prevent progression of age-related sarcopenia (skeletal muscle decline) but also may disturb bone metabolism. The investigators will pilot test a randomized trial comparing the effects of short-term adaptation to a well-formulated ketogenic diet and Mediterranean diet on markers of bone metabolism and muscle function in older adults. The expected results will help inform the benefit-risk assessment for older patients considering longer term use of KD therapy.
The effects of diet on inflammatory bowel disease is an under-studied area of research. The investigators are interested in further investigating the role that diet contributes to inflammatory bowel disease severity. The investigators will collect blood and stool samples from patients with inflammatory bowel disease (IBD) before and after diet changes. The stool samples will be analyzed using metabolomics and microbiome analysis to determine changes after the new diet has been implemented. The investigators will then compare changes in the patient's overall disease state by measuring markers of inflammation including C-reactive protein (CRP) and fecal calprotectin to determine how this diet affects the disease state.
The purpose of this research is to compare two healthy diet styles during pregnancy. Sixty pregnant women between 8 and 16 weeks will participate. Participates will be randomly assigned (like flipping a coin) to either receive routine healthy diet advice and counseling, or to receive advice and counseling for the Mediterranean style diet. Our current routine healthy diet program follows the recommendations provided by the American College of Obstetricians and Gynecologists (ACOG). It recommends the consumption of grains, fruits, vegetables, protein foods, and dairy foods during pregnancy. The Mediterranean diet (MedDiet) is a well-known healthy diet that consists of a large amount of plant-based foods such as fruits, vegetables, beans, and nuts with olive oil as the principal source of fat. Dairy, fish, and poultry are consumed in moderation and red meat only eaten occasionally. Throughout their pregnancy, participants will receive free food and be assessed to determine how will they are following to the diet plan they were randomized to.
Given the limited effectiveness of single food group-targeted interventions to enhance child nutrition, a key component of current and future health, innovative approaches are needed. Healthy dietary patterns are emerging as an important intervention target, and the Mediterranean Dietary pattern has been particularly effective at reducing cardiovascular disease risk factors, a leading cause of death in the US. Since parents are the gatekeepers of the home food environment and influence child intake through food-related parenting practices, children enjoy cooking with parents, and home food preparation is associated with more healthful dietary intake. Therefore, the investigators propose to develop and assess the feasibility, acceptability, and preliminary efficacy of an online cooking intervention for parent-child dyads living in low-income households that promotes the Mediterranean dietary pattern and healthful food-related parenting practices.
This study is being completed to determine if the Mediterranean (MD) and low FODMAP (fermentable, oligosaccharides, disaccharides, monosaccharides, and polyols) diets are comparable in the effectiveness to treat Irritable Bowel Syndrome (IBS). The study team hypothesizes that: * The low FODMAP and Mediterranean groups will achieve a similar improvement in abdominal pain * Both groups will achieve similar improvements in bloating, overall IBS symptom severity, and adequate relief
A Mediterranean Diet (MedDiet), a largely plant-based dietary pattern, is relevant to CRC prevention and microbial production of anti-cancer metabolites in observational studies. A MedDiet can shift BA metabolism as shown in primates and when combined with calorie restriction, shows superior adherence and weight control in humans, given its palatability. To date, no studies have tested in an RCT the effects of a MedDiet alone (MedA), WL through lifestyle intervention (WL-A) or a calorie-restricted MedDiet for WL (WL-Med) on the BA-gut microbiome axis and its relevance to CRC prevention among AAs. A multidisciplinary team combining expertise in psychology, nutrition, microbiology, molecular cell biology, computational biology, medicine and biostatistics, proposes to conduct a four-arm RCT in which 232 obese AAs, 45-75 years old complete one of the following 6-month interventions: Med-A, weight stable; WL-A, calorie restriction with no diet pattern change; WLMed; or Control. The investigators will use samples and data collected at baseline, mid-study (month-3) and post-intervention to compare the effects of the interventions on 1) Concentration and composition of circulating and fecal BAs; 2) Gut microbiota and metabolic function; and 3) Gene expression profiles of exfoliated intestinal epithelial cells.
This is a 10-week randomized, controlled study to investigate the effect of a Mediterranean diet intervention on gastrointestinal function in Parkinson's disease. After a 2-week run-in period, participants will be instructed to receive standard of care for constipation or receive standard of care + follow a Mediterranean diet for 8 weeks and answer daily and weekly questionnaires. Nutritional and neurological evaluations and stool samples will be collected at 0, 4 and 8 weeks.
The purpose of this study is to study the effects of a structured Mediterranean dietary program on prevention of weight gain, promotion of heart health and prevention of fatty liver disease after liver transplantation.
This study will assess the feasibility of delivering an 8-week Mediterranean Diet intervention as well as the intervention's preliminary efficacy on cancer-related fatigue among patients undergoing chemotherapy, compared to usual care. In the first 4 weeks of the intervention, we will provide the participants with food and educate them on the principles and components of the Mediterranean Diet, while in the second 4 weeks participants will prepare their own food. In addition, we will evaluate changes in metabolism and mitochondrial function during 4 weeks of chemotherapy and determine how adherence to a Mediterranean diet modulates these changes during these 4 weeks. The hypothesis is that the intervention will promote adherence to the Mediterranean Diet. The second hypothesis is that adherence will be associated with alleviation of fatigue and improvements in metabolic and mitochondrial function.
Although patients and physicians have shown tremendous interest in the effect of diet on ulcerative colitis, there is a lack of significant evidence for providers to make practical recommendations with. In this study, the investigators hope to find out if dietary therapy by either the Specific Carbohydrate Diet (SCD) or the Mediterranean diet will help improve ulcerative colitis symptoms for patients with mild to moderately active disease. In addition, the investigators will compare disease activity and changes in the intestinal bacterial composition in the colon that occur with the Mediterranean or the SCD diet in active ulcerative colitis. This study is proposed as a single-site randomized trial consisting of 10 study visits to Massachusetts General Hospital (MGH) over 12 weeks. Participants in this study will be randomly assigned to the SCD or Mediterranean diet. The investigators ask that participants exclusively consume their assigned diet for 6 weeks, with all meals and snacks prepared by the metabolic kitchen within MGH. Participants will need to pick up food from MGH every 5-7 days, and will meet with a study dietitian before they begin and weekly during the diet therapy. There will be a screening visit to determine eligibility for the study, as well as study visits at weeks 0, 1, 2, 4, 6, and a 10 week follow-up at MGH, in which participants will fill out questionnaires. Participants will need to provide stool samples at screening, week 6, and week 10. In addition, blood will be drawn at week 0 and week 6, and if participants are getting a clinically-indicated colonoscopy at the time of screening, up to eight research biopsies may be collected during the procedure.
The investigators propose to assess the effects of including mushrooms as part of a healthy eating pattern on indices of perceived mental health/anxiety/depression, along with risk factors for cardiovascular disease and type 2 diabetes.
The objective of this study is to compare two metabolically distinct diets, WFKD vs Med-Plus, in order to examine the potential benefits, and unintended consequences, of going beyond a focus on maximally avoiding added sugars and refined grains, to also avoiding legumes, fruits, and whole grains.
Diabetes Mellitus (DM) is a global epidemic associated with inflammation, aggressive atherosclerosis and increased risk for, and severity of, coronary artery disease. Strategies to improve glycemic control with insulin and/or oral hypoglycemic agents have not impacted cardiovascular morbidity and mortality in type II DM patients with known heart disease. The Investigators have found that the typical "Western" diet, which is high in saturated fats, such as the lipid palmitate, but low in unsaturated fats, such as the lipid oleate, results in changes to cell membrane lipid content and disruptions to membrane functional domains -called caveolae- that are associated with insulin resistance and metabolic dysfunction. In mice, the investigators found that palmitate induces both systolic and diastolic contractile dysfunction. They have demonstrated, in cell cultures, that oleate prevents palmitate-induced cell dysfunction. This may explain how a diet rich in unsaturated fats and plant-derived flavonoids, such as the "Mediterranean" diet, can counter the adverse cardiovascular effects of DM. This study builds in these prior findings and its central hypothesis is that, in DM, a Mediterranean diet can induce rapid changes in cardiac cell membrane lipid composition and signaling. This is a randomized dietary intervention in DM subjects scheduled for coronary artery bypass grafting (CABG) surgery, to examine the effects of a short-term modified Mediterranean diet (ModMeD), compared to the standard cardiac DM diet (SCaDMD), on receptor tyrosine kinase signaling, serum and cellular lipid content, and membrane/caveolae function.
This randomized, cross-over trial aims to assess changes in body weight, plasma lipids, insulin sensitivity, and postprandial metabolism with a low-fat, plant-based diet and a Mediterranean diet, both followed for 4 months.
A 12-week, randomized nutrition intervention for the reduction of cardiovascular disease risk factors in a high-risk population in the southeastern United States. The primary objective of this pilot study was to assess the efficacy of a Mediterranean diet intervention (education + extra-virgin olive oil (EVOO) and mixed nut supplementation) versus that of an American Heart Association (AHA) nutrition intervention (education) on serum blood lipid levels as markers for cardiovascular disease risk. Researchers conducting this trial hypothesize that a greater reduction will be seen in cardiovascular disease risk factors in the Mediterranean diet intervention.
This study will evaluate the impact of a Mediterranean-style diet on microbiome diversity compared to a typical American diet. The study will observe the microbiome composition comparisons in healthy volunteers as well as in patients with Irritable Bowel Syndrome with Diarrhea (IBS-D) to see if the consumption of a Mediterranean-style diet has a positive effect on improving symptoms of IBS-D.
The deleterious effects of obesity on cardiovascular disease (CVD) and metabolic risk factors (dyslipidemia, hypertension, and insulin resistance) are well-documented. Recent evidence also links obesity to cognitive decline and dementia. Dietary patterns are central to the development and maintenance of obesity and certain dietary patterns may contribute to the onset and progression of cognitive decline. With the rapid aging of the US population and the high prevalence of obesity among older adults, innovative lifestyle strategies to prevent cognitive decline among ethnically diverse obese older adults are critically needed.
This protocol is designed to compare the effectiveness of two dietary interventions for patients with Crohn's disease (CD): the Specific Carbohydrate Diet (SCD) and a Mediterranean style diet (MSD) that has been demonstrated to have numerous other health benefits. The two diets will be compared in terms of their ability to resolve both the symptoms and bowel inflammation that characterize this debilitating disease.
The purpose of the BEAM study is to compare the effects of a low-carbohydrate diet and a lowfat diet for adults with mild memory loss and adults with pre-diabetes. The data collected will help determine changes in cognitive function, brain structure and function, and levels of certain proteins and hormones in body fluids.
The purpose of this study is to modify the food culture of the fire service by motivating firefighters and their families to incorporate Mediterranean diet principles at work and home through behavior change strategies that involve education, participation and incentives. The ultimate purpose is to lower firefighters' risks for CVD and cancer by successfully getting more firefighters and their families to adopt and incorporate the healthy eating principles behind the Mediterranean diet.
By doing this study, researchers hope to learn if older adults with and without cognitive impairment can adhere to a Mediterranean diet.
The purpose of this research is to investigate the effects of a PB no- added-fat and the AHA and MED in obese (BMI \>95%) children ages 9-18 with hypercholesterolemia (\>169 mg/dl) and a parent or guardian. Eligible patients will be identified by utilizing the Pediatric Obesity Registry. When possible, in-person discussions or phone calls with their primary or tertiary care physicians will introduce eligible patients and their parents to the study. All eligible patients and parents will receive letters describing the study and requesting their participation. Subjects can choose not to participate in the study, and their health care will not be affected in any way. Subjects not participating will be asked if they are willing to answer a brief questionnaire about why they chose not to participate. The proposed study will be carried out for a total of 52 weeks. The investigators expect to recruit a total of 180 participants (30 children and 30 parents/guardians in each of the three groups). Each child and parent/guardian pair will be randomly assigned to either PB no-added-fat, AHA or MED.
This project will evaluate the daily intake of whole eggs in the Mediterranean Diet (Med Diet). Cholesterol levels are normally related to cardiovascular disease (CVD) risk. Dietary fat and the total diet makeup are well known modifiers of CVD risk. The Med Diet has been shown to decrease blood lipids (fats) and reduce inflammation. Cholesterol intake from eggs may not be as bad as once thought and, in fact, may help to improve the blood lipid (fat) levels. This study is being done to test how the addition of eggs to a Med Diet affects blood lipids and other risk markers for CVD.
The purpose of the proposed research study is to assess the effects of including greater amounts of minimally processed red meat (lean pork and beef) into a Mediterranean Diet on cardiometabolic and emotional well-being.
Many metabolic complications can develop after liver transplant including: diabetes, high blood pressure, obesity, heart attacks and stroke. The goal of this study is to look at the safety and effect of 2 well known and established diet regimens on the people who had a prior liver transplant and investigate whether it helps with the control of these comorbidities.
The purpose of this research study is to evaluate the effects of intermittent fasting in subjects that are eating a Mediterranean diet or a Western diet. This study is part of ongoing research in the prevention and treatment of age-related diseases at Washington University School of Medicine.