130 Clinical Trials for Various Conditions
This study is being conducted to assess the effects of a prebiotic product, Arrabina P, on appetite in healthy adults. The goal is to see if this product can help with appetite regulation, support gut health, and support weight management.
This study will investigate food ingredients that may provide fullness to healthy adults after a meal. The ingredients will be incorporated into a lunch meal, and measures of hunger and fullness will be evaluated for several hours after the meal. Study subjects must be able to travel to the USDA Nutrition Center in Beltsville Maryland at scheduled times during the study for meals and study measures.
Strong evidence supports the association between high fiber (HiFi) diets (e.g. legumes, nuts, vegetables) and a reduced risk for chronic conditions such as cardiovascular disease (CVD), type 2 diabetes and some forms of cancer. However, the current U.S. average consumption of dietary fiber of 17g/day is significantly below the recommendation level of 25g/d for women and 38g/d for men. Furthermore, fiber fermentation to produce short chain fatty acid (SCFA) products and alterations in microbial composition and activity may be mechanisms linking a HiFi diet to improved health. Importantly, much of the data, including findings supporting a beneficial role of SCFA have been derived from animal studies. Human studies are now needed to advance the understanding of the translational significance of rodent studies and the potential benefit of fiber on microbial metabolites and cardiometabolic health, glucose regulation, appetite and satiety. The central hypothesis is that that the mechanisms by which dietary fiber provides metabolic benefit include direct physical effects in the upper gastrointestinal tract to slow nutrient absorption, and indirect effects to reduce food intake mediated by SCFA-induced secretion of intestinal hormones resulting in increased satiety. Design: Using fiber derived from peas, Aim 1 will test the effect of a HiFi diet on appetite, satiety, and cardiometabolic health and whether elevated SCFA concentration mediates improved satiety in 44 overweight/obese subjects randomly assigned to receive either a high fiber or a low fiber dietary intervention for four weeks in a parallel arm-repeated measures design. Aim 2 will quantitate the changes in microbial composition and colonic SCFA production rate during HiFi feeding and whether any changes are potential mediators of observed benefits on satiety and cardiometabolic risk factors in 26 subjects assigned to receive a high fiber intervention for 3 weeks in a repeated measures design. Relevance: These studies will significantly expand the understanding of mechanisms by which dietary fiber improves satiety and cardiometabolic health in humans.
The objective of the proposed research is to determine the effects of watermelon (fruit and rind blenderized) on satiety, metabolic markers, bowel habits, microbiome and weight management in children and adults
The objective of the study is to determine the effects of fresh mango pulp consumption on satiety and metabolic parameters in overweight/obese adults.
This study is designed to compare two types of snacks (almonds or a cereal-based snack), eaten between meals, on measures of appetite, including appetitive hormones, self-reported feelings of hunger and fullness, and food intake at a buffet meal or in the home environment. The investigators hypothesize that the acute responses of appetitive hormones to a meal challenge protocol will differ between almond and cereal-based snacks based on multivariate models of satiety that will be predictive of ad libitum food intake at a dinner meal as part of the meal challenge protocol. Further, the investigators will estimate if, under free-living conditions, self-selected and self-reported food intake will show appropriate energy compensation for the added calories of the snacks, and determine if one type of snack is superior to the other in this regard.
Comparison of Capsimax™ 2mg and 4mg of capsicum extract vs. placebo on metabolic rate and satiety.
The goal of the proposed study is to determine the effects of fresh watermelon fruit consumption on satiety, metabolic parameters and weight management.
The first goal of the proposed study is to determine acute and long-term effects of mixed nuts (almonds, hazelnuts, pecans, pistachios, walnuts, and peanuts) on metabolic parameters and weight management. While numerous studies have shown the beneficial effects of nuts on promoting negative energy balance and weight loss, mechanistic studies exploring how the inclusion of nuts in the diet promotes a negative energy balance and weight loss have not been conducted. The second goal is to determine the mechanisms by which mixed nut consumption regulates of food intake and body weight.
Background: Omega-7 fatty acids are found in the oil extracted from certain fish and nuts like macadamia. Palmitoleic acid is one of the most common omega-7 fatty acids. Many studies suggest that this oil is good for heart health. Researchers want to find out more about these potential benefits. Objective: To study how oil enriched with palmitoleic acid (Omega-7 oil) affects metabolism. Eligibility: Healthy adults at least 18 years old with no known history of cardiovascular disease. Subjects not allergic to fish oil and fish products Females that are not pregnant and are not planning a pregnancy during the length of the study Design: Participants will be screened with questions about their health, medical history, and medicines they take. Participants will have 4 visits over 24 weeks. The visits may include: * Blood drawn from a vein in the arm by a needle stick. Sometimes participants will have to fast before the blood draw. * Vital signs (blood pressure, heart rate, and temperature) taken * Body mass index measured * Cardio-Ankle Vascular Index test may be performed. The stiffness of the participant s arteries will be measured by reading blood pressure in the arms and legs and monitoring the heart. * Optional stool samples * Pregnancy test * A short review of participants physical activity and diet * A supply of dietary supplements to take between visits. Participants will take 4 gel capsules a day. Participants will keep a food and exercise journal Compensation will be provided to subjects that complete the study Check your eligibility for this study by clicking here: https://www.surveymonkey.com/r/DietaryOmega ...
The purpose of this study is to evaluate the effect of dietary fat on satiety (the experience of fullness between one meal and the next) and energy metabolism over an extended period of time (chronic effects). How dietary fat sources affect satiety, appetite and energy use is unclear. The investigators will use a controlled setting for the studies. They want to know if the source of dietary fat alters satiety, satiety hormones, and energy expenditure responses after consuming different diets.
The goal of this study is to assess the effects of consumption of a lean pork-containing, high-protein breakfast versus a refined carbohydrate-rich breakfast on satiety and cardiometabolic parameters in overweight or obese adults with pre-diabetes.
The purpose of this study is to assess the acute effect of dietary fat on satiety and energy metabolism.
BASIC fMRI is a prospective single center intervention trial using fMRI imaging in 9-11 year old obese male and females pre and post family-based behavioral treatment of 24 weeks duration to determine the relationship between impulsivity and central satiety responses.
One important factor determining school performance is the consumption of breakfast. While research has shown that older children perform better in school after consuming breakfast, there are little data for preschool-age children. Consuming breakfasts with different macro- and micronutrient contents may have different effects on performance, which may be associated with variations in satiation and satiety during and after the different breakfasts. In addition, children who consume breakfast have better diet quality than children who skip breakfast. The investigators will conduct a community based, randomized, crossover trial in 4-5 year old children over 7 weeks to examine the short-term effect of feeding preschoolers three different intervention breakfast types: high protein, high-fiber, or high protein and high fiber compared to a usual breakfast served at the preschool. The investigators expect that the children consuming any of the three experimental breakfasts will consume less overall calories and have better diet quality and memory performance compared to children who have the usual breakfast. The investigators hypothesis is that preschoolers will experience the highest level of satiety as well as highest level of overall diet quality when they consume the combined high-protein and high-fiber based breakfast foods. This study will be conducted at Bauer Family Resources in Lafayette as these are the sites of Head Start programs, which are preschools for children from low-income families. Children from families of low income are more likely to have poor diet quality and poor school performance compared to children from families with higher incomes. Therefore, this population is most in need of this type of intervention.
Proposed is a parallel-design randomized controlled trial to compare the effects of consuming two types of snacks on a daily basis for a 12-week period on health outcomes, diet quality, and self-reported satiety in a group of overweight adults. The types of snacks to be studied are KIND snack bars with almonds and typical American snack foods).
The purpose of this research study is to determine whether a probiotic can change the way bile is used by the body. The investigators will also look at the effect of the probiotic on your intestinal health.
The purpose of this study is to examine the effects of normal vs. protein-rich afternoon snacks on appetite control, satiety, and reward-driven eating (particularly in the evening) in young people. Indices of attention and mood will also be assessed. Study hypotheses include the following: 1. The consumption of a high-protein, soy-rich afternoon snack will lead to significant improvements in appetite control and satiety, reductions in food motivation and reward, and will delay the drive to eat in normal to overweight young people. 2. The consumption of a high-protein, soy-rich afternoon snack will lead to reduced unhealthy, evening snacking, particularly on foods high in fat and/or sugar, in normal to overweight young people. 3. The daily consumption of a high-protein, soy-rich afternoon snack will lead to significant improvements in afternoon alertness, concentration, fatigue, and well-being in normal to overweight young people.
The objective of this study is to confirm that Monosodium L-Glutamate (MSG) supplementation, both alone or in combination with Nucleic Acid (IMP), enhances satiety and decreases food intakes at the next meal in healthy female adults.
This study is to determine if two breakfasts of equivalent calories, an oat based breakfast cereal or a ready-to-eat cereal, provide the same satiety benefits. The study will also determine if the two calorically equivalent oat-based breakfast cereals give different caloric intakes at a lunch meal that participants will eat to their satisfaction.
To test the hypothesis that two 40 gm serving of Oat-based breakfast cereals compared to an equicaloric amount of a ready-to-eat Oat-based breakfast cereal will give greater satiety over the 4 hour period following breakfast.
Assessing 5 different milk derived proteins versus placebo for appetite regulation and satiety, delivered via shake vehicle.
The investigators hypothesize that consumption of either white or brown rice will be more satiating than glucose control.
Subjective measures of satiety are correlated with biologic mechanisms of appetite control.
This study is designed to test the hypothesis that on an equivalent calorie basis, oat based breakfast cereals do not provide the same satiety benefit. The study will also demonstrate the satiety comparison of the cereals related to product density.
Despite widespread efforts to improve the treatment of obesity, only limited progress has been made. Calorie restriction (CR) has consistently been shown to produce weight loss, as well as delay the onset of age-related diseases, in numerous species. Most overweight individuals, however, are unable to sustain CR induced weight losses, possibly due to internal feedback systems that signal the body to increase food intake or decrease energy expenditure in response to weight loss. Novel treatment approaches are thus urgently needed that can assist overweight individuals in adhering to a CR regimen over the long-term. Botanicals represent an important and underexplored source of potential new therapies that may facilitate CR. In particular, one promising botanical that may reduce food intake and body weight by affecting neuroendocrine pathways related to satiety is Garcinia Cambogia (Garcinia Cambogia Desr.)-derived (-)-hydroxycitric acid. This compound has been found to facilitate weight loss in a number of studies. To date, few studies have directly tested the effect that this botanical on food intake in humans, its mechanism of action, or its effect on oxidative stress levels; thus rigorous scientific studies on this compounds need to be conducted. A double-blind, placebo-controlled crossover study will be conducted to explore the role that two different doses of this botanical compound have on food intake, satiety, weight loss, and oxidative stress levels. It is hypothesized that compared to placebo, both doses of Garcinia Cambogia (hydroxycitric acid) will reduce food intake, increase satiety, decrease weight, and reduce oxidative stress levels.
Determine whether eating beans with a high fat meal will reduce the inflammatory response in people with the metabolic syndrome and increase feelings of satiety.
Our objective is to determine whether food form (liquid vs. solid) alters gastric emptying, satiety, and food intake, when all macronutrients and fiber are controlled. The study population will include 10 healthy women, who have a normal body mass index. We have chosen to evaluate only women because this is a small pilot study and one of our endpoints is gastric emptying. Gastric emptying is known to differ between men and women. Gastric emptying will be evaluated using the Smartpill technology, satiety will be evaluated using computerized visual analog scales/questions, and food intake will be measured by providing subjects with an ad libitum/buffet-style lunch. Our hypothesis is that our subjects will be less hungry after they eat a solid breakfast compared to a liquid breakfast. We also hypothesize that our subjects will have a slower gastric emptying time after they eat the solid meal. Lastly, we think subjects will want to eat less food at lunch time if they have eaten a solid meal compared to a liquid meal for breakfast.
Research suggests dietary fiber may play a role in weight management, and fiber consumption is inversely associated with body weight, body fat, and BMI in cross-sectional studies. These effects may be mediated by increased satiety, reduced food intake, or changes in blood levels of glucose, insulin, and gut hormones. The purpose of this study is to determine the satiety, glycemic, hormonal, and gastrointestinal responses of novel fiber supplements.
The purpose of this study is to examine the effectiveness of the South Beach Diet and products compared to the American Diabetic Association Diabetes Meal Plan.