View clinical trials related to Dietary Exposure.
Filter by:The link between what people eat and how it affects faecal output (poo) has been understudied. Most of the research that has looked at the link between diet, bowel movements and overall health has studied different types of fibre extracted from foods (e.g., fibre extracted from carrots), rather than foods in the form that they are consumed. It is necessary for scientists to investigate the relationship between food as people usual eat it (e.g., a carrot) and bowel movements, as this information is key to understanding the relationship between what people eat and overall health. The investigators would like to understand the relationship between intake of certain foods and faecal output. This will help to develop a chart, similar to the United Kingdom National Health Service urine colour hydration chart. The chart will allow people to know, by looking at their poo, whether they are eating enough of the foods that will keep them healthy. By monitoring and measuring participants' bowel movements, and providing information about diet, participants will provide the data we need for this research.
To determine diet-health associations, researchers rely on information obtained from dietary instruments, such as the 24-hour recall (R24H), food frequency questionnaires (FFQ) and food diaries, in clinical studies. However, it is widely recognized that the information provided by the different instruments is biased by different factors including recall errors and respondent burden. The impact of the variability produced by this bias decreases the robustness of diet-health associations which results in the creation of less efficient standards and recommendations for our population. To address this, the discovery of biomarkers of food intake (BFIs) is an objective tool that indicates exposure to specific foods or various dietary patterns. BFIs allow the calibration of dietary information to obtain the real consumption of the individual and thus clarify the relationship between different pathologies of interest and the intake of different foods. BIAMEX will initially focus on the discovery of BFIs of nopal, corn tortilla, mango, avocado, guava and amaranth. For this purpose, a controlled crossover intervention study is being carried out with the 6 foods to be investigated where 24h urine and plasma samples are being collected. Subsequently, the samples collected will be analyzed by mass spectrometry.
This single-center, randomized controlled pilot study aims to evaluate the efficacy of TruHeight Growth Protein Shake on improving growth patterns in children aged 4-17 years. Over six months, participants will consume the protein shake daily, five times a week, with outcomes measured in terms of type X collagen concentration in urine, height via a stadiometer, and body composition using an INBODY device.
The Cohort on Plant-based Diets (COPLANT) study is a multi-centre cohort study that starts baseline recruitment from 2024 to 2027 with approximately 6,000 participants in Germany and Austria. The COPLANT study focuses on vegan (no animal products), vegetarian (no meat and fish, but dairy products and eggs), pescetarian (no meat, but fish) and omnivorous (mixed diet including all possible animal products) diets. The aim of the COPLANT study is to gain new insights on health benefits and risks as well as social, ecological and economic effects of different plant-based diets in comparison to a mixed diet. In addition to a detailed dietary survey using an app adapted to the needs of this study, the baseline examination includes measurements of body composition, bone health, cardiovascular risk factors, diabetes risk, contaminants and lifestyle. For the basic laboratory program, fasting blood, 24-hour urine collection and a stool sample are taken from all study participants. Furthermore, specific aspects of dietary behavior, physical activity and other lifestyle factors are collected via questionnaires. Follow-up studies are planned at intervals of 5, 10 and 20 years after the baseline visit.
Sarcopenia is characterized by loss of skeletal muscle mass and strength with advancing age. It is linked to an increased risk of falls, disability, length of hospitalization, poor quality of life, and burden of health care. Nutrition and physical activity are the major modifiable factors to prevent and mitigate sarcopenia. However, most studies focused on the explore the effects of physical activity or single nutrient supplementation. Whether a multi-intervention program combining protein-rich food intake, nutrition education, and exercise can more effectively reduce the risk of sarcopenia still needs to be explored at the community level. This study aimed to investigate the effects of a multi-intervention program (protein-rich food supplement, nutrition education, and exercise) on reducing the risk of sarcopenia. The primary outcome is to evaluate the effect of a multi-intervention program and exercise intervention only. The second outcome is to assess the impact of animal and plant source protein on muscle mass and physical performance. Investigators will recruit the study participants over the age of 60 from the free-living community. All participants were randomized into three groups: animal protein, plant protein, and control group. For 8 weeks, all three groups receive resistance training 3 times/week. However, the animal and plant protein groups provide milk 240 mL and soy milk 230 mL (7-8 g protein/serving) after exercise, respectively, and receive personal nutritional counseling and education to adhere to dietary recommendations. Dual-energy X-Ray using to evaluate the body composition and measure the grip strength, five-time chair stand test, and gait speed to assess physical performance pre- and post-intervention. The results of this study can be used to prevent muscle mass loss and frailty for older adults in the community.
The study is a prospective, controlled, randomized two-arm longitudinal crossover trial, performed in a single-centre. Hence, the investigators designed a clinical study aimed to investigate the effects of a daily intake of soffritto in overweight or obese class-1 individuals without other cardiovascular risk. After a run-in period of two-week, participants were randomly separated in two different intervention sequences (two-arms) of six-weeks in which volunteers were administered with a soffritto (100 g/day) or a control group (without soffritto). After the first six-week period, participants had a wash-out phase of two-week followed by a second six-week period in which groups exchanged their interventions. During the duration of the study, the volunteers were asked to maintain their usual diet, excluding raw or cooked tomatoes, as well as tomato-based products (sauces, ketchup, juices, etc.) other than those administered during the study in the corresponding periods.
Enterally fed adults with documented evidence of gastrointestinal intolerance will be recruited. Participants will be deemed by the investigator as having a clinical indication for enteral feeding with a fibre containing peptide formula. Data from 15 participants are required in order to submit an application to the Advisory Committee on Borderline Substances (ACBS) for product registration.
Product acceptability data from 15 participants are required in order to submit an application to the Advisory Committee on Borderline Substances (ACBS) and the Health Service Executive (HSE) submission for Ireland for product registration.
The goal of this observational study is to compare the nutritional intake among pregnant women with a strict plant-based diet versus an omnivorous diet. The main aim is to compare vitamin B12 intake. Participants will be asked to: - fill out a health questionnaire - fill out a three-day food diary - undergo blood sampling Researchers will compare pregnant women with a strict plant-based diet and pregnant women with an omnivorous diet to see if their nutritional intake is comparable.
The goal of this clinical pilot trial is to test the use of dried chicory root in patients with IBD. The main questions it aims to answer are: what the effect of a 4-week 10-20 g/day WholeFiberTM intervention on fecal calprotectin, IBD-complaints and QoL, serum inflammatory markers, gut microbiota and SCFA levels in patients with Crohn's disease and ulcerative colitis Participants will receive 1 sachet of 10g WholeFiberTM for the first 2 weeks (equals 8.5 g fiber), and 2 sachets of 10g WholeFiberTM per day for the last two weeks (equals 17 g fiber). Researchers will compare the above mentioned outcomes before and after the intervention.