View clinical trials related to Overweight.
Filter by:Obesity represents a serious global health issue with significant consequences, including an increased risk of chronic diseases. Statistics indicate a growing trend of obesity, highlighting the need to seek methods that improve fat tissue metabolism and reduce obesity-related complications. Previous research on animals has shown that betaine, a substance engaged in one-carbon metabolism, may enhance fat oxidation and lower adipose tissue. Therefore, the aim of the research will be to assess the impact of 8-week betaine supplementation on body composition and lipid metabolism markers, as well as expression of genes related to lipid metabolism, in a group of adult women with abdominal obesity. This study is designed in a placebo-controlled, double-blinded, randomized fashion. The participants will be overweight or obese pre-menopausal females. Upon enrollment, participants will be randomly assigned to one of two parallel groups: betaine (3g/d) or placebo. The supplementation period will last for 8 weeks. There will be three study meetings: T1 before supplementation, T2 after 4 weeks of supplementation, and T3 after 8 weeks of supplementation. Blood will be drawn and body composition measured, and adipose tissue biopsy taken at meetings T1 and T3. The T2 meeting will involve only body composition measurement. Study outcomes will include body mass and composition (including body fat percent), lipid profile, and the expression of genes related to lipid metabolism in adipose tissue and peripheral blood mononuclear cells.
Overweight and obesity are at epidemic proportions in the world population as well as in the United States, where nearly 42% of the adult population(1) is considered to meet the definition of obesity, namely a body mass index ("BMI") ≥ 30 kg/m2. Well-established links between obesity and increased morbidities and mortality make treatment of the utmost importance; however, there continues to be a significant unmet need for more effective treatments for obesity. Bariatric surgery is recognized as an effective treatment for obese patients, particularly in more severe cases where surgical restriction of the stomach's capacity and outlet size are considered necessary. The BariClip® is a laparoscopically implanted device for treatment of obesity and serves as an alternative to current existing technology for use in bariatric surgery. The BariClip® is a medical device, non-adjustable, resembling a clip that is placed parallel to the greater curvature of the stomach, causing restriction of the gastric lumen in a vertical fashion. This multi-center, randomized, moderate-lifestyle (program of diet and exercise) controlled pivotal study of the BariClip® device is intended to gather data to objectively support its safety and effectiveness for the treatment of obesity in adults and to ultimately support marketing authorization of this device as a viable alternative to existing bariatric surgical procedures. Specifically, this study aims to look at efficacy of the BariClip® device with regards to weight loss metrics and secondary health metrics and safety of the BariClip® device with regards to serious adverse events.
Background: In a previous study, participants were lived at the NIH and randomly received either a low-fat or a low-carbohydrate diet for 2 weeks and then switched to the other diet for 2 more weeks. Participants who received the low-carbohydrate diet first lost more body fat at the end of the study than those who received the low-fat diet first. Researchers want to see if they can repeat that result in a longer weight loss study when participants live at home. Objective: To test the effects of diet order in people receiving either a low-fat or low-carbohydrate diet first for 4 weeks and then immediately switched to the other diet for another 4 weeks. Eligibility: Adults aged 19 to 50 years with a body mass index of 25 or more. Design: Participants will complete the study at their homes, but there will be 3 required visits to the NIH. Participants will drink a special type of water 2 weeks before the baseline NIH visit and collect urine samples at home to measure how many calories they burn. Before the diets begin, participants will visit the NIH for baseline testing when they will have a metabolism test while relaxing in a bed with a plastic hood over their head to collect the air they breathe out. They will have scans to measure their bone density and how much muscle and body fat they have. They will give stool, blood, and urine samples. Participants will be asked to eat a specific diet for 4 weeks followed by a different diet for 4 weeks. All meals will be delivered to the participants homes. They will eat only the foods delivered. Participants will weigh themselves daily. They will wear a monitor to track their physical activity and a sensor to measure their glucose levels. They will prick their finger each morning to test a drop of blood for ketones. Participants will meet virtually as a group with the study team weekly. Participants will have two more NIH visits towards the end of each diet period....
The objective of the study is to determine the effect of dairy product matrices on insulin sensitivity in overweight and obese adults with prediabetes. Females and males (30-65 y) will be recruited from the greater Montreal area. Upon screening, those with prediabetes will complete a 2-wk run-in period in which participants will consume 1 serving/d of regular-fat dairy products (milk, yogurt, or cheese). Adherent participants will be randomized by sex into 1 of 3 groups: ≤1 serving/d of dairy (limited dairy) or 2-3 servings/d of reduced-fat or regular-fat dairy for 12 weeks. Participants will be instructed on how to incorporate foods into their diet to prevent changes in their body weight. The hyperinsulinemic-euglycemic clamp will be used before and after the intervention to document potential changes in insulin sensitivity as the primary outcome. In addition, glycemic variables, body composition, and cardiometabolic risk factors will be assessed as secondary outcomes. Adherence to intervention will be assessed at each visit by food diaries and a record of consumed dairy products.
Mediterranean diet is worldwide promoted as one of the healthiest and most sustainable dietary patterns. One of the main pillars of Mediterranean diet is the abundant consumption of plant-based ingredients typically consumed as raw or minimally processed. However, even in the Mediterranean countries, these fresh foods are increasingly replaced by ultra-processed foods (UPF). Epidemiological evidence suggests that consumption of UPF may be detrimental to human health, but there is only one clinical trial on this topic which is largely debated in the scientific community due to limitations related to the short duration of the trial and the composition of dietary interventions. The present study aims at exploring whether the inclusion of UPF within a Mediterranean-based dietary pattern can impact on cardiometabolic markers, gut microbiota and other health markers in a dietary intervention performed in Italian subjects. For this purpose, 50 clinically healthy subjects will be recruited for a 7-month randomized, open, cross-over dietary trial. Eligible participants will be randomly assigned to consume a 3-month Mediterranean diet high in UPF (intervention group) or a low-UPF Mediterranean diet (control group), spaced by a 1-month wash-out period. The two diets will have the same composition in terms of food groups. However, in the high-UPF Mediterranean diet group, 5 servings/day of UPF, as defined by the NOVA system, will be consumed (e.g., flavored yogurt, breakfast cereals with added sugar, processed meat). In the control group, these foods will be replaced by products from the same food group, but not UPF (e.g., plain yogurt, breakfast cereals with no added sugar, unprocessed meat). The inflammatory potential of pairs of food products, both UPF and non UPF, will be evaluated using an in vitro cell model testing the modulation of inflammatory markers. Before and after each intervention blood, urine and fecal samples will be collected. The primary endpoint is change in low-density lipoprotein (LDL) cholesterol levels from baseline. Among the other markers, blood pressure and anthropometric parameters will be measured; biochemical parameters, adipokines, inflammatory and oxidative stress markers, fecal microbiota composition and short chain fatty acids (SCFAs) will be analyzed. Adherence to the study, dietary intake and food waste production will be evaluated through specific food diaries, useful also for estimating the metabolic food waste.
In recent decades, the prevalence of obesity and overweight has dramatically increased globally, representing a serious problem for society and for the health system of many countries, estimating an impact of 2-8% on global health spending. Obesity and overweight represent a problem not only for adults but also for children and adolescents: the latest data from the WHO estimate that about 340 million children and adolescents between 5 and 19 years are overweight or obese, data that increase drastically since 1975 from 4% of boys to 18% in 2016. (World Health Organization (WHO). The reduction and prevention of overweight and obesity in childhood is one of the main missions of public health at the global level, both for short-term and long-term implications. Recently, the importance of bioprothesiometric analysis (BIA) in the clinical routine has been evaluated, as it allows an estimation of body composition that would not otherwise be provided by the growth curves and the calculation of the Body Mass Index (BMI). In this study the investigators want to evaluate, in addition to the classic clinical parameters, the body composition of patients evaluated by means of an impedance balance (named TANITA MC780 MA P). With this study the investigators aim to investigate possible clinical and body composition changes in children and adolescents suffering from overweight and obesity with the ultimate aim of reducing cardio-metabolic risk factors related to it. The objective of the study is the assessment of body composition, as an indicator of accuracy of lean mass, but especially of fat mass, of pediatric patients who are overweight and obesity in order to carry out a more complete evaluation of the clinical-metabolic condition for the prevention of cardiovascular risk. The secondary objective is to assess the dietary compliance of the patients being studied and the possible correlation with the body composition.
This study plans to learn more about metabolic responses to aerobic exercise at different times of the day (morning or evening) under fasting versus fed conditions.
Time-restricted eating (TRE) is a dietary approach that aims to increase fasting time and decrease the eating window. Promising TRE effects on weight loss and improvements in some cardiometabolic risk factors have been reported in studies in animals and humans. However, the impacts of TRE combined with aerobic exercise training in individuals with overweight and obesity have been insufficiently investigated. Additionally, aerobic training performed in a fasted state appears to promote physiological adaptations that may improve the metabolic health in individuals with overweight and obesity. The present study investigates the effects of 8 weeks of TRE associated with aerobic training in a fasted state versus a fed state on body composition and cardiometabolic parameters in women with overweight and grade 1 obesity.
The goal of this clinical trial is to investigate the differences in microbiota, height and weight between infants born by cesarean section to obese mothers and randomized to receive fecal microbiota transplant after birth. The main questions it aims to answer are: - Could fecal transplant be used improve gut microbiota and prevent overweight or obesity. - Is the source of colonization a modifiable factor and can it be changed by using an early fecal microbiota transplant.
The investigators' purpose is to develop and test the feasibility, usability, and satisfaction of the Diet4painrelief app as a platform for implementing nutrition care in a specialist pain rehabilitation clinic. The Diet4painrelief will consist of two components: a) a screening tool for nutrition status b) an individually tailored behavior change program aiming to improve the dietary habits and behaviors of patients living with chronic pain. The study is planned to include 20 patients with complex chronic pain and non-optimal BMI (underweight or overweight/obesity) to examine the feasibility and outcomes of evidence-based Interdisciplinary Pain Rehabilitation Program (IPRP) integrated with nutrition care. The Diet4painrelief includes a screening tool to assess basic nutritional status as well as their intake of key unhealthy and healthy foods and drinks (through three 24hour-dietary recordings or food diary). Thereafter, the patients receive a personalized behavior change program for dietary optimization. The investigators will design and adapt 6 modules in the digital platform (Diet4painrelief app) based on the International Association for the Study of Pain (IASP) recommendations (6 aspects about 'nutrition and pain') and Sweden's food culture. Clinical outcomes using patient-reported data on socio-demographics, pain aspects, psychometric data, physical disability, and quality of life will be measured at three occasions: first appointment (Pre-IPRP), immediately after completing the rehabilitation program (Post-IPRP), and at a 12-month follow-up (FU-IPRP). Blood samples will be taken to identify biomarkers at the same occasions that provide objective information on metabolic and nutritional abnormalities and further to evaluate the effect of the dietary intervention on changing of pain rehabilitation outcomes.