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Browse 2,358 clinical trials for obesity. Find studies that match your criteria and connect with research centers.
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NCT04339114
Scientific evidence is growing on the health benefits of herbs/spices. The study is interested in understanding how various herb and spice blends influence the function of blood vessels. The study is also interested in how blood sugar, the insulin hormone and immune cells may be related to how well the blood vessels function. Herbs and spices have components called phytochemicals that may be related to how well blood vessels function. The study is planned to investigate these relationships. After qualifying to participate in the research study, participants will be asked to come to the Clinical Nutrition Research Center (CNRC) for four on-site Study Days, each lasting for about 8 hours with a 40 min followup to measure vessels' function the next morning. On each Study Day, different amounts of herbs/spices will be included in a breakfast meal. The herbs and spices are purchased in the grocery store and are Italian herbs, cinnamon, and a mix of pumpkin pie spices (cinnamon, ginger, clove, nutmeg). All meals will be prepared in the CNRC's kitchen using foods and ingredients purchased at the local grocery store. Blood collection and blood vessel function tests will be performed during the Study Day using typical procedures used in hospitals, doctor offices, and clinics.
NCT04267263
The purpose of this research study is to find out whether a primarily self-guided program can produce changes in weight, body fat and cardiovascular risk among young men.
NCT04605640
This research is to develop a weight loss and weight maintenance program through dietary modifications for adults with obesity. Although scientific studies have shown the feasibility of rapid and safe dietary weight loss and subsequent weight maintenance, no efficacious dietary weight management program is widely available, and thus bariatric surgery remains the most reliable approach for weight loss/management. Safe and effective dietary weight loss and subsequent weight maintenance require flexible, individualized advice by an experienced dietitian/nutritionist.
NCT02952638
This study aims to test the hypothesis that dietary intake of phosphatidylcholine (PC) and lysophosphatidylcholine (LPC) acutely alters plasma lysophosphatidic acid (LPA) levels and autotaxin activity in normal weight and obese subjects.
NCT04853537
This randomized controlled clinical trial will assess the impact of intermittent fasting on the incidence of gestational DM in obese pregnant women in 3rd trimester and its effect on maternal and neonatal outcomes.
NCT04522245
The aim of this study is to compare brain changes in individuals with overweight or obesity enrolled in either the Noom Healthy Weight program or a matched control. The study objectives (primary and secondary) are to measure brain change reported as ERP and EEG data over a 16-week timeframe. Additionally, we will explore changes in the default mode network (resting-state asymmetry in EEG measurements), changes in executive functioning, quality of life, mood, and salivary markers as they relate to EEG data.
NCT03956290
The TREAT Pilot is a 3 months open-label pilot study to examine the effect of restricting the duration of eating (Time Restricted EATing) in metabolically unhealthy adults with overweight or obesity. This pilot study will allow the investigator to collect preliminary data for the design of a larger study.
NCT03203915
To determine if the addition of chardonnay grape marc (also called pomace) powder enriched with grape seed extract to the diet will result in reducing blood levels of cholesterol or triglycerides.
NCT03750695
Obesity before and during pregnancy is associated with a higher risk for a number of obstetric and metabolic complications in women and their offspring. Of particular importance, obese women have a higher risk of developing gestational diabetes and preeclampsia. In addition, obese women have larger offspring who have a higher risk for the development of obesity and diabetes; both largely attributed to higher maternal glycemia and glucose intolerance during pregnancy. Thus, identifying rehabilitative interventions that improve maternal and offspring metabolic and cardiovascular health in obese pregnancy are critical and have immediate and generational impact. Resistance and aerobic exercise training is a clinical staple for improving musculoskeletal, metabolic and cardiovascular health in non-gravid adolescents and adults with obesity however little is known regarding the effects of exercise during obese pregnancy. This study proposes to collect preliminary data on the independent effects of acute aerobic and resistance rehabilitative exercise on glucose metabolism and vascular function during pregnancy in n=15 obese women in order to inform a large, multisite clinical trial examining the acute and chronic effects of aerobic and resistance exercise on glucose metabolism and vascular function in normal weight, overweight and obese women during pregnancy.
NCT04854915
The investigators aim to undertake a feasibility randomised controlled trial (RCT) to investigate whether mHealth technology, allowing biometric informed feedback and coaching on exercise and PA, can be incorporated into the existing Liverpool Overweight and Obesity Programme (LOOP) at Alder Hey Children's Hospital. The overall objective is to have an evidence-based exercise and PA intervention ready to evaluate in a future RCT.
NCT03940599
Investigating the impact of self-monitoring feedback for health behaviors
NCT03042234
Evaluate the effects of HIT on the cardiorespiratory performance and substrate oxidation of insulin-resistant and insulin-sensitive obese adolescents.
NCT03426228
A quantitative prospective cohort study will be conducted, where blood samples will be collected at different timings during the IVF protocol, to assess the impact of fertility medications on metabolic parameters of patients undergoing IVF treatment.
NCT04162457
The human brain has a central role in regulating appetite and food intake. It integrates many metabolic, hedonic and trait-related signals that affect eating behaviour and determine when and how much we eat. The effects of non-nutritive sweeteners (NNS) that provide sweet taste with no calories on appetite, food intake thus weight status remain a subject of debate. In this study, the investigators aim to investigate whole brain response to the ingestion of beverages sweetened with caloric sugars (glucose, maltodextrin) or NNS (stevia) as well as neural substrates of attentional bias to food (pre-and post consumption) in healthy lean participants.
NCT04955769
This study, it was aimed to investigate the relationship between body image, self-stigma, intuitive eating and exercise attitude levels, which are thought to be effective on the mental well-being of overweight and obese individuals. For this purpose, the Body Image Scale, Intuitive Eating Scale-2, Exercise Stages of Change Scale-Short Form and Decisional Balance Scale in Exercise will be used to assess overweight and obese individuals. 100 people will be included in the study.
NCT04773977
This is a study to evaluate the pharmacokinetic characteristics and safety of IBI362 lyophilized powder and IBI362 liquid formulation in healthy Chinese male subjects.
NCT01494025
Elevated fat levels within skeletal muscle cells (intramyocellular lipids) are highly correlated with muscle and whole-body insulin resistance, and more prevalent in obesity. The molecular links and metabolic shifts driving this association remain open to debate, but notably, reduced muscle mitochondrial fatty acid (FA) ß-oxidation is more prevalent among insulin-resistant/diabetic persons. Therefore, discovery of biomarkers reflective of the status of an individual's muscle FA ß-oxidation activity or capacity would have tremendous prognostic and diagnostic value in terms of diabetes. Furthermore, characterization of metabolites associated with muscle mitochondrial fat metabolism should uncover candidate signaling factors which tie FA ß-oxidation to insulin signaling. The investigators propose to identify, for the first time, specific biomarkers of muscle FA ß-oxidation using multiple metabolomic analytical platforms to compare metabolite profiles in samples derived from biological systems displaying disparate muscle fat combustion. The current experiment will test whether plasma metabolites and/or metabolite signatures that track efficient muscular FA ß-oxidation can be experimentally increased in obese, insulin-resistant subjects via a diet-exercise regimen designed to improve muscle fitness and FA combustion.
NCT03215888
Obesity is associated with alterations in brain structure and cognitive impairment and is a risk factor for Alzheimer's disease and vascular dementia. The mechanisms underlying obesity related decline in cognitive function are not fully understood. The long-term goal of this project is to understand how obesity affects cognitive function, with the aim to develop new ways to prevent and treat obesity related cognitive decline
NCT03095664
The objective of the present study is to implement and evaluate the effect of a counseling program to promote healthy eating and practice of physical activity in the nutritional status, quality of life and prognosis of women Type I (endometrioid) endometrial cancer.
NCT01851421
Background: \- Melanocortin receptors are proteins in the body that help send messages between body systems. One such receptor, the melanocortin 3 receptor (MC3R), is important for regulating body weight. Differences in MC3R can affect fat metabolism - or how the body handles fat. Some people who have changes in the MC3R genetic code are heavier than those who do not have these changes. These changes are found more often in African Americans. Researchers want to study the MC3R in African American adults to see how these changes may affect fat metabolism. They will look at overweight adults with either the most common genetic code for the MC3R or a rare variant. Objectives: \- To study the role of the MC3R in body weight and fat metabolism. Eligibility: * Healthy African American volunteers between 18 and 55 years of age. * Volunteers must be overweight (body mass index at least 30 kg/m2) but weigh less than 450 lbs. Design: * The study consists of an outpatient screening visit and a 7-day inpatient visit with dietary studies. * Participants will be screened with a physical exam and medical history. Blood samples will be collected. (Participants will need to fast for 10 hours before giving blood samples.) A body scan will be given to determine fat, bone, and muscle content. Participants will complete a 3-day dietary assessment to record their food and drink consumption. They will also have an exercise test to look at heart and lung function. * Participants will have a 7-day inpatient stay. They will have a regular diet for the first 3 days of the study. For the final 4 days, they will have a diet with a higher fat content. * During the inpatient visit, participants will have the following study procedures: * Body measurements * Daily exercise routine * Imaging studies of the body * Measurement of a whole day s energy expenditure (spending one day in metabolic chamber-day 5) * Frequent blood samples * Urine collection for 24 hours (days 3 and 7) * Fat biopsy (collection of a small sample of fat tissue from under the skin on the abdomen) * Insulin and metabolism tests while eating the two different diets (day 4 and day 7). * After the final insulin and metabolism test, participants will be discharged from the study.
