37 Clinical Trials for Various Conditions
The digestive system is a pivotal component of human health, playing a crucial role in the absorption of nutrients, elimination of waste, and even influencing mental well-being. Poor digestive health can significantly impact one's quality of life and overall well-being. Issues such as bloating, constipation, or imbalanced gut microbiome can affect one's overall well-being. Moreover, the gut-brain connection underscores how digestive health can affect mental well-being. The gut can contribute to serotonin and energy production thus influencing one's mood, energy levels and cognitive functions, affecting one's emotional stability. Additionally, inadequate nutrient absorption from an imbalanced digestive system may lead to suboptimal health, weakening the body and causing fatigue. Overall, maintaining good digestive health is crucial not only for physical comfort but also for normal metabolism, immune function, cognitive abilities, sleep and skin health, ultimately enhancing the overall quality of life. Products designed by the sponsor contains a blend of ingredients recognized for their potential benefits in promoting digestive health (including prebiotics, probiotics, postbiotics, plant-based extracts and plant-based protein). Furthermore, it is well established in the literature that diet, exercise, hydration and mindfulness all impact our gut health and overall well-being. Therefore, this scientific study seeks to validate the efficacy of the combination of products and life-style changes by assessing its impact on gut health and related health aspects like weight, metabolic health, fitness level, energy/fatigue levels, satiety/hunger, food cravings, cognitive abilities and overall well-being.
The study aims to evaluate the effectiveness of a dietary supplement (greens powder), on improving digestive health, quality of life, energy levels, and satiety over a 14-day period. Participants, aged 18-65 and experiencing mild digestive issues, will consume the greens powder daily and report outcomes through diaries and questionnaires.
This study is a randomized, double-blind, placebo-controlled study of N=30 apparently healthy men and women. This is an exploratory study to assess the effect of a novel dietary supplement on blood markers of nutrient status and the gut microbiome.
This is a virtual single-group study that will last 12 weeks. Participants will take 1 capsule every day, with water. Questionnaires will be completed at baseline, 2 weeks, 4 weeks, and 12 weeks.
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
This study focuses on the relationship between the brain and the gut, and additionally will foster collaboration between Movement Disorder experts and Neurogastroenterologists to provide critical information and lead to innovative therapies in the future to treat GI dysfunction of Parkinson's Disease.
This is a randomized crossover intervention designed to evaluate effects of daily intake of beverages containing orange or apple Pomace on gastrointestinal function as measured by stool frequency. Additional outcomes will include aspects of digestive health and self-reported GI symptoms and dietary intake as well as analysis of gut microbiota.
The objective of this study is to examine the effects of 2 servings of hot cereal per day over 2 weeks on digestive health in children that typically eat low fiber diets.
The purpose of this study is to determine whether incorporating almonds into the diets of families with young children will induce beneficial changes in gastrointestinal function, the fecal microbiota profile, and immune and inflammatory processes of the adults and children resulting in improved quality of life. The investigators anticipate finding an increase in beneficial bacteria, improved intestinal function, and decreased inflammation during the almond intervention.
The purpose of this study is to determine if substituting whole grains for refined grains in the diets of healthy adults over a period of 6 weeks alters the composition of the bacteria in the gut, and has beneficial effects on immune function, digestive health, cardiovascular health, regulation of body weight and composition, and vitamin K status. The investigators hypothesize that whole grain consumption over a period of 6 weeks will alter the gut microflora toward a more beneficial bacterial profile, improve the immune response while reducing oxidative stress and inflammatory markers, have favorable effects on factors influencing the regulation of body weight and composition,increase bacterial vitamin K synthesis, and beneficially effect surrogate markers of cholesterol synthesis/absorption, vitamin D concentrations, and whole genome DNA methylation patterns. In statin users it is hypothesized that, consumption of whole grains will alter statin pharmacokinetics by decreasing rate of statin absorption, resulting in more sustained plasma concentrations.
The purpose of this study is to determine if daily consumption of a probiotic in the period before, during and after academic exams will help maintain digestive and immune health and quality of life of undergraduate students.
The purpose of this research study is to determine whether a functional fiber, galactooligosaccharide, can help maintain immune strength and digestive health in free-living older adults. It is hypothesized that older adults consuming the fiber daily for 24 weeks over cold and flu season will have more healthy days due to a proliferation of beneficial bacteria within the colon which alters cytokine production and enhances natural killer cell function. Immune and gastrointestinal health will be evaluated via daily questionnaires obtained from 80 participants and from the collection of blood and fecal samples.
The purpose of this study is to determine the effect of probiotic supplemented yogurt in reducing colonic transit time (CTT) in females between the ages of 18-65 years old. Two yogurts will be administered, one containing a specific strain of probiotic in the Bifidobacterium genus and the other without the probiotic supplement. It is hypothesized that subjects receiving the probiotic supplemented yogurt will experience reduced CTT and improved gastrointestinal comfort and quality of life compared to those receiving the non-probiotic supplemented yogurt.
The purpose of this research study is to determine whether a functional fiber, galactooligosaccharide, can help maintain immune strength and digestive health in undergraduate students who are undergoing an academic stress (i.e., final exams). Subjects will be asked to consume the fiber or placebo each day for eight weeks. Immune and gastrointestinal health will be evaluated via daily questionnaires obtained from 420 students and from the collection of fecal samples in a subgroup of students.
The purposes of this study are to estimate the burden of disease due to chronic gastrointestinal illness in PG veterans, to evaluate whether Small Bowel Bacterial Overgrowth (SBBO) is associated with chronic diarrhea in PG veterans, and to determine whether eradication of SBBO reduces symptoms of chronic diarrhea, abdominal pain and bloating in PG veterans.
A positive impact of a fermented dairy protein with prebiotic fiber supplement on self-reported GI complaints and wellbeing has been suggested (Wardenaar et al. 2024). The following project aims to further investigate the impact of this supplements in athletes with and without GI complaints in two separate data collections. Part I of the data collection aims to investigate the impact of this supplement vs. a placebo on carbohydrate malabsorption (as a potential cause for GI distress) in athletes that normally don't identify as having GI complaints (randomized double-blind cross over study design covering a total of 9 weeks, including a 3-week washout period). Part II of the data collection aims to confirm the earlier found results in the previous study (Wardenaar et al. 2024) in a group athletes self-reporting GI complaints that will be randomized into an intervention group or a placebo group (randomized double-blind parallel study design covering a total of 3 weeks).
The carbohydrate inulin (from chicory root) is a healthy prebiotic ingredient found in dietary supplements and fortified foods (Nagy et al). Inulin is representative of a broader class of typically health-associated, yet fermentable carbohydrates called fructans that occur naturally in many vegetables, fruits, and wheat. Fructans, or long chains of fructose units, are resistant to human digestive enzyme hydrolysis and transit intact to the small intestine and colon where they undergo rapid fermentation by intestinal microbes. This microbial metabolism of fructans produces gas and other fermentation byproducts that can lead to excess gastrointestinal (GI) symptoms like abdominal bloating, cramping, stomach rumbling, and flatulence (Bonnema et al; Briet et al; Bruhwyler et al), especially in individuals with irritable bowel syndrome (Van den Houte et al). A new digestive enzyme called fructanase was developed to help with GI symptoms associated with fructan consumption. Positive findings from in vitro digestion simulations (Guice et al) and a first-in-human safety trial (Garvey et al) helped define the fructanase dose for this clinical trial-the primary objective of which is to investigate the effect of oral fructanase administration on GI symptoms in healthy adults after consuming oatmeal with added inulin (25 grams). Secondary outcomes include breath hydrogen and methane levels, which serve as biomarkers of intestinal microbial fermentation. The investigators hypothesize that fructanase administration will lower the severity of GI symptoms after inulin consumption, as well as lower breath biomarkers of intestinal microbial fermentation, compared to placebo.
This virtual single-group study aims to evaluate the efficacy of Bye Bye Bloat Capsules in relieving hormonal and food-related bloating and promoting healthy digestion. The study will last 4 weeks, involving 40 female participants aged 18+ who will take two capsules after meals and during times of bloating. Measurements and questionnaires will be completed at Baseline, first use, Week 2, and Week 4.
Healthy participants with self-reported GI complaints will consume the protein supplement that they normally use for recovery purposes after exercise during a 3-week baseline period, followed by a 3-week intervention period in which they maintain usage of their product, but replace a part of this product with a fermented dairy protein with prebiotic fiber. In addition, a group of healthy participants without self-reported GI complaints will serve as a reference group by consuming the protein supplement that they normally use for recovery purposes after exercise during a 3-week period.
The primary objective of this study is to investigate the acute effects of a microbial multi-enzyme mixture ("BC-006") on postprandial nutrient levels in healthy, middle-aged to older adults during a mixed meal tolerance test. Additionally, the effects of twice daily consumption of BC-006 and placebo for 3 weeks on abdominal bloating, flatulence, bowel function, and sleep quality will be measured.
The purpose of this study is to investigate the effect of a digestive enzyme supplement (three times per day for 30 days) on gastrointestinal distress (GID) and body composition (body mass and body fat percentage) in healthy men and women (18 - 55 years of age) who experience regular GID (3 - 6 episodes of GID per month).
The primary objective of this study is to investigate the effect of an oral probiotic (Bacillus sp. spore preparation) on abdominal bloating, flatulence, and burping in generally healthy adults. Secondary outcomes include intestinal barrier integrity and fecal microbiome properties (taxonomical structure, diversity, and function).
The primary objective of this study is to investigate the effect of a novel Bacillus subtilis spore preparation on abdominal bloating, flatulence, and burping in healthy adults.
This clinical trial aims to understand the feasibility of patients taking ketone body supplement beta-hydroxybutyrate (BHB) for 4 weeks with a confirmed diagnosis of Crohn's disease and starting new therapy for active disease. The main questions it aims to answer are: * BHB supplementation will be feasible and acceptable to patients. * BHB supplementation will be associated with a reduction in systemic inflammation. * BHB supplementation will be associated with a reduction in pro-inflammatory bacterial colonies. Participants will: * Take 3 capsules x 3 times per day for 4 weeks. * Document food consumption using a 24-hour food recall questionnaire. * Provide blood and fecal samples twice, at the beginning of the study and the 4-week mark. Researchers will compare the group taking the ketone body supplement and the group not taking the supplement to see if the supplement provides relief of symptoms suffered from Crohn's disease.
The purpose of this study is to determine whether healthy older adults, aged 65 to 80 years, consuming a probiotic each day for three weeks will have improved immune strength and digestive health. It is hypothesized that older adults consuming the probiotics will see a shift in their microbiota towards the "healthy" bacteria resulting in a greater proportion of immune cells, decreased inflammation, and better digestive health.
The Dietary Guidelines for Americans recommend that children and adolescents "consume whole-grain products often; at least half the grains should be whole grains." Few, if any studies, examine the benefit of whole grains on the health of adolescents. The purpose of this study is to determine if adolescents eating diets rich in whole grains vs. diets rich in refined grains (i.e., a typical diet) have improved markers of digestive and immune health.
The purpose of this study is to evaluate the effect of a commercially available fermented dairy product containing probiotics (4 weeks, twice a day) on the brain activity within specific neural circuits regulating the subjective experience of emotional valence and digestive well-being.
The goal of this study is to determine the safety and efficacy of two enzyme cocktails in healthy adults with mild to moderate gastrointestinal discomfort. The main question aims to answer whether a 4-week administration of an enzyme cocktail can improve how the participant feels about their gut health. This is done by completing a weekly questionnaire, and the results are compared between the 4 weeks the participants are on a placebo and the 4 weeks the participants are on the enzyme cocktail. Participants will also provide a stool sample at the start and end of each treatment. Stool samples will collected and stored in case further microbiome analysis is warranted.
The goal of this randomized controlled trial is to evaluate the impacts of an attachment-based intervention (Attachment Biobehavioral Catch-Up (ABC) and Home Book-of-the-Week (HBOW) program on emerging health outcomes (i.e., common childhood illnesses, body mass index, and sleep) in low-income Latino children (N=260; 9 months at enrollment). It is hypothesized that children randomized to ABC will have better health outcomes in comparison to the HBOW control group.
This study examines at-home monitoring of patient-generated phsyiologic health data and patient-reported outcomes. Patient-generated health data using at-home monitoring devices and smart device applications are used more and more to measure value and quality in cancer care. This trial may show whether at-home monitoring programs can improve the care of patients after hospital discharge from surgery.