Active clinical trials for "Weight Loss"

Overweight and obesity prevalence in adolescents and adults continues to remain significantly high in the United States. While diet and exercise improve many consequences of obesity, dietary strategies are not always nutrient sufficient and manageable long-term. Thus, highly complaint dietary strategies that lead to fat loss, while maintaining muscle mass, are needed. Time-restricted feeding (TRF) may be an ideal dietary approach for reducing fat mass and cardiovascular disease risk, while diminishing the loss of muscle mass and strength associated with obesity and aging. TRF, unlike continuous energy restriction, does not require a restrictive energy intake10. TRF requires individuals to consume calories within a set window of time (example = 8 hours), inducing a fasting window of 16 hours per day. There are few human studies on TRF that measure their effects in combination with both aerobic and resistance training. One recent study found an 8-hour TRF program (16-hour fast) improved insulin sensitivity, decreased fat mass, and maintained muscle mass in resistance-trained males after 8 weeks. Thus, the feasibility of TRF as dietary approach should be investigated further.The aims of this study are to: 1) determine whether time-restricted feeding (TRF) is an effective dietary strategy for reducing fat mass while preserving fat-free mass with aerobic and resistance training; 2) evaluate potential changes in health-related biomarkers (cardiovascular profile and anabolic-catabolic hormones) and muscle health indicators (mass, strength and quality) after 8 weeks of concurrent training with TRF; and 3) examine the influence of caloric intake and macronutrient consumption on muscle health in the TRF and normal feeding (NF) groups pre- to post-concurrent resistance training.

This is a two-phase study. Phase 1 will evaluate obesity-related behavioral and biological characteristics as potential predictors of response to behavioral treatment (BT) for weight loss. Phase 2 is a double-blind, placebo-controlled, RCT to test whether adding weight loss medication to BT improves 24-week weight loss, as compared to BT with placebo, in subjects identified as having suboptimal early weight loss after 4 weeks of individual behavioral weight control. All participants, regardless of their early weight loss, will receive the same BT program of diet, physical activity, and behavior therapy for weight loss for an additional 24 weeks (28 total weeks of treatment).

This study is an ancillary study to the Utilizing Protein During Weight Loss to Impact Physical Function (UPLIFT) trial (NCT03074643) to evaluate the effects of diet composition (i.e., amount of protein and carbohydrate) during a 6-month weight loss intervention and 12-months of follow-up on bone phenotypes in obese older adults. Participants will receive either a protein or carbohydrate supplement along with a behavioral weight loss intervention.

Surgical management of Morbid Obesity is increasingly frequent. A low-calorie diet is recommended with the main goal of reducing intrahepatic fat infiltration, fat tissue and making easier the surgery. Information the use pharmacological interventions during the preoperative period in this population are rare.

This program is a double-blind, randomized, placebo-controlled study. Investigators expect to enroll 100 overweight or obese children those ages 6 to 18 years. A product that containing three probiotics will be prescribed for study group for 12 weeks plus diet and exercise guidance, while the control group will be given a placebo plus diet and exercise guidance.

Online, guided self-help interventions have been used for weight-loss (WL), as well as for treatment of eating disorders (EDs), separately, but no program exists to manage these conditions together. To date, a combination ED and WL intervention has been piloted in adolescents who endorsed high-risk ED behavior and had overweight, and revealed moderate improvement in ED behavior and WL. Thus, the use of online intervention for ED psychopathology and WL in individuals with clinical and sub-clinical EDs is the next step. Given Dr. Wilfley's past expertise with ED and WL interventions, and particularly her involvement with online interventions for these issues her mentorship will support the carrying out of aims for this proposal. The goal of this proposal is to implement a program to reduce weight and shape concerns, reduce disordered eating symptoms such as binging and compensatory behaviors associated with binge-type EDs, while also reducing weight for college students with comorbid overweight/obesity. This project will pilot an online, guided self-help ED intervention that offers cognitive behavioral therapy (CBT) based tools to improve ED symptoms, while also teaching them healthy methods of behavioral WL, for individuals with clinical/sub-clinical binge-type EDs with comorbid overweight/obesity in order to examine effectiveness compared to referral to Student Health Services for ED and WL concerns.

A pilot study comparing the effects of pea protein versus whey protein on the preservation of muscle mass and functionality in individuals undertaking a weight loss regimen.

The detrimental effect of overweight and obesity on fecundity has been well documented. The investigators wish to investigate the intervention program for weight loss before fertility treatment. Subsequently to gain knowledge on the effect of overweight/obesity and weight loss on the vaginal microbiome, on DNA damage on sperm cells, on the occurrence of endocrine disruptors in the endometrium, and on the gene expression in the endometrium.

The purpose of this study is to develop and test the feasibility of a behavioral weight loss intervention that uses personalized recommendations for diet and physical activity behaviors in a behavioral weight loss program and to explore factors associated with treatment adherence and response. The 12-week intervention will utilize digital tools for self-monitoring and counseling by weight management professionals. Exploratory analyses will be conducted to determine if there are genetic, metabolomic, microbiome, or psychosocial factors associated with treatment response.

Obesity is an ongoing major public health problem in most countries of the world for which the agrifood industry still remains criticized because of the abundant offer of high sugar-lipid-energy dense foods, particularly in the fast-food sector. The resulting societal pressure on the food industry probably explains in part the efforts that have been deployed to seek natural active ingredients and to develop functional foods favorably influencing energy balance. Capsaicin is a food non-nutrient constituent that was shown to decrease appetite sensations and subsequent energy intake. The measurement of heart rate variability revealed an association between the increase in sympathetic nervous system (SNS) activity and the satiating effects induced by capsaicin. This is concordant with the observation that pre-prandial intake of capsaicin, be it in capsules or diluted in tomato juice, increased satiety and reduced energy intake. The objective of this study is to evaluate the long effects of Capsimax on appetite sensations and energy expenditure under conditions of moderate energy restriction and to evaluate the long-term effects of Capsimax on energy intake and expenditure under conditions of moderate energy restriction.