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14 Dietary Intake Trials Near You
Power is an online platform that helps thousands of Dietary Intake patients discover FDA-reviewed trials every day. Every trial we feature meets safety and ethical standards, giving patients an easy way to discover promising new treatments in the research stage.
Learn More About PowerPlant-Based Diet for Healthy Eating Habits
Louisville, Kentucky
The investigator's goal is to promote a plant-based diet amongst the underserved urban population of Louisville with the help of educational aids and the provision of affordable resources.
No Placebo Group
Trial Details
Trial Status:Recruiting
Key Eligibility Criteria
Disqualifiers:Not Listed
300 Participants Needed
Toddler Tastes for Dietary Behavior
Buffalo, New York
The goal of this study is to determine the feasibility and acceptability of two food preference learning approaches for toddlers that could serve as alternatives to mere repeated exposure to new or previously disliked foods. The target population is toddlers who score higher on food fussiness.
The study is a two-group randomized controlled trial. Families will be randomized to 1 of 2 study groups: associative conditioning, or the child tasting vegetables alongside a palatable dip, or modeling, in which the child and parent taste vegetables together. Both groups will attend two laboratory visits, one before and one after a 4-week exposure period, and will be asked to complete 8 vegetable tastings in accordance with their assigned condition across the 4 intervention weeks.
Key questions to be addressed are:
* summarizing the feasibility and acceptability of the intervention strategies
* assessing whether children's liking and intake of the target food increase from baseline to post-intervention
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Key Eligibility Criteria
Disqualifiers:Physical, Mental Health Conditions, Others
40 Participants Needed
DHA for Healthy Nutrition
Toronto, Ontario
Docosahexaenoic acid (DHA) is an omega-3 polyunsaturated fatty acid (n-3 PUFA), commonly consumed from fish, that regulates many critical functions within the body including the brain, eye, and heart. While the metabolic precursor to DHA, alpha-linolenic acid (ALA) is considered nutritionally essential and has a set Dietary Reference Intake (DRI), DHA has not yet been deemed essential and does not have a set DRI. Currently, research suggests an intake range of dietary DHA to be anywhere from 0 to over 500mg/d. The aim of our study is to further investigate a feedback mechanism or accumulation that occurs with eicosapentaenoic acid (EPA) as a result of increased dietary DHA to provide insight for potential Recommended Dietary Intake (RDI) values.
Hypothesis: The dietary DHA dose at which blood EPA levels increase is the point at which elongation slows, indicating a significant negative feedback pathway is present.
Objectives: 1: To determine the dose-response for DHA to increase blood EPA levels in a mixed vegetarian and vegan population. 2: Investigate the DHA dose and time at dose that increases EPA using natural abundance delta carbon-13 (δ13C) as a tracer. 3: To measure DHA turnover and loss rates. 4: Provide data for exploratory analyses related to PUFA metabolism and the effect of DHA on disease related biomarkers.
Method: During an 8-week trial, 72 healthy vegan or vegetarian males and females (18-50 years) will be supplemented with 1 of 6 algal-oil based DHA doses: 0, 100, 200, 400, 800 or 1000 mg/d. Blood will be collected at days 0, 3, 7, 14, 28 and 56 and will be analyzed for changes in blood EPA levels as the primary outcome and plasma δ13C EPA signature as the secondary outcome.
Significance: Investigating this negative feedback pathway is of great importance in providing evidence to support n-3 PUFA DRIs. EPA and DHA are ecologically sensitive with their major source coming from unsustainably farmed fish stocks and having a set DRI may help to limit the overconsumption of these nutrients.
Trial Details
Trial Status:Active Not Recruiting
Age:18 - 50
Key Eligibility Criteria
Disqualifiers:Not Listed
72 Participants Needed
Spices and Herbs for Increasing Vegetable Intake
Bethesda, Maryland
"The goal of this study is to evaluate whether the addition of spices and herbs to the vegetables served to military personnel on a large military base can increase vegetable intake as compared to typical vegetable offerings without spices and herbs.
A two-phase intervention will be conducted on base at Naval Station Activity Bethesda (NSAB) to evaluate whether the addition of spices and herbs to vegetable dishes can increase vegetable intake amongst military service members.
Phase I will involve extensive engagement with key stakeholders involved in current vegetable consumption at NSAB, including military service members, staff dietitians, the health promotion specialist on base, barracks managers, military culinary specialist, unit leaders, morale welfare and recreations/single sailor program leaders, base senior enlisted leaders, and the base commander. Questionnaires will be administered evaluating current barriers to vegetable intake at NSAB, familiarity with and liking of a variety of spices and herbs, and sensory testing of several vegetables with and without spices and herbs. The recipes in the vegetable sensory testing comparisons will be identical other than spices and herbs content.
Phase II will involve will focus upon the direct measurement of vegetable intake (primary outcome) and vegetable linking (secondary outcome) among active-duty service members with spices and herbs and without spices and herbs. The vegetables will be provided as part of an entire meal on a "grab and go" plate. The other foods in the meal (proteins, starches, etc.) accompanying the vegetables will be kept consistently paired to vegetable recipes to minimize confounding. Vegetable intake will be assessed via cell phone pictures and liking will be assessed by a single 5-point Likert scale question."
No Placebo Group
Trial Details
Trial Status:Recruiting
Key Eligibility Criteria
Disqualifiers:Not Listed
400 Participants Needed
Lifestyle and Sleep Intervention for Obesity
Philadelphia, Pennsylvania
This study is being performed to understand the effects of a lifestyle modification and sleep intervention on weight loss outcomes in adolescence. The main question the study aims to answer is:
- What are the initial effects of a lifestyle modification and sleep intervention, including effects on weight, eating behaviors and dietary intake, and sleep?
Participants will:
* Participate in remote, group-based, weekly weight loss and sleep coaching for 16 weeks.
* Complete study assessments at baseline (pre-intervention), mid-intervention, and post-intervention.
* Complete daily sleep diaries for three 7-day periods at each assessment point.
No Placebo Group
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:14 - 18
Key Eligibility Criteria
Disqualifiers:Diabetes, Eating Disorder, Sleep Apnea, Others
Must Not Be Taking:Insomnia Meds, Weight Loss Meds, Insulin
50 Participants Needed
Contrave for Obesity
Ottawa, Ontario
Obesity is a common chronic disease linked with increased risk for other illnesses and earlier death. Our team and others have shown that many bodily and psychological changes occur when individuals are on calorie-restricted diets. These changes might undermine dietary adherence and help to explain the relatively poor long-term efficacy of diets. These include increased appetite, increased food 'value' and 'wanting' that leads to overconsumption. Other factors include more sensitive sensory cues (e.g., smelling), higher food liking and craving, and a drop in resting energy expenditure (REE). REE has been shown to predict weight regain.
The standard care for obesity may include the use of the weight-loss drug CONTRAVE®. The Federal Drug Agency (FDA) and Health Canada have approved this drug for weight management and obesity treatment.
Although CONTRAVE® was designed to reduce appetite, food-related impulsivity and cravings, its mechanisms of action are unclear. In other words, the effects of CONTRAVE® on REE, executive function, and brain changes remain unknown in humans. A better understanding of how this drug works on the brain and body could lead to improvements in obesity management in the future.
As such, the goal of this research is to study the effects of 4 weeks of CONTRAVE® (+ diet program) vs. control (placebo pill + diet program) on mood, body composition changes, biological/metabolic measures, and brain measures.
Adults aged 18-64 with obesity will be randomized to one of two groups: diet + CONTRAVE® (CONTRAVE®, 20 participants) or diet + Placebo (Placebo, 20 participants). Both groups will be assigned the same study procedures for the entire study duration. The only difference is that Group 1 will receive CONTRAVE® while Group 2 will receive a placebo (non-medical) pill.
The study design and intervention is as follows:
Participants who meet all the telephone screening criteria will be invited to the Clinical EEG \& Neuroimaging Laboratory at The Royal's IMHR for an in-person screening and test-dose session. Participants who are cleared by the study physician, Dr. Pierre Blier, during the in-person screening will be enrolled in the 4-weeks trial.
After the in-person screening visit, participants will attend two baseline testing visits (before starting the medication + diet program). The first will occur at the Behavioural and Metabolic Research Unit at the University of Ottawa. During this in-person visit, measures of body composition, resting energy expenditure, appetite, food craving, impulsivity, eating behaviours, taste and odour sensitivity, energy intake, and food preference will be collected.
The second baseline visit (within a week of the first one) will occur at The Royal/IMHR. During this visit, participants will be asked to complete questionnaires. They will undergo an EEG recording while resting and performing computer tasks. They will also get a brain imaging scan, during which they are asked to rest and complete a computer task.
Both testing sessions (University of Ottawa and Royal Ottawa testing sessions) will be repeated after four weeks of treatment. The section below provides further description and timing of these visits.
As part of the treatment, you will receive an individualized dietary intervention with appropriate energy restriction from a registered dietitian at Dr. Judy Shiau's LEAF weight management clinic (called the 4-week BUDS program). The program involves weekly touch points with a registered dietitian and meal planning/coaching. The diet intervention will commence the same week as the start of the placebo/CONTRAVE®.
During the 4-week intervention, participants will be asked to complete online questionnaires at various times.
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 4
Age:18 - 64
Key Eligibility Criteria
Disqualifiers:Severe Depression, Diabetes, Cardiac Defects, Others
Must Be Taking:Contrave
40 Participants Needed
Protein Intake for Older Athletes
Montréal, Quebec
Masters level cyclists are a population above the age of 35 years who frequently participate in prolonged as well as heavy-volume training. Like most endurance-trained athletes, a greater recommended dietary allowance (RDA) for protein of 1.2-1.4 g/kg/bw is suggested.
Dietary protein intake is vital for maximizing the benefits of training and ensuring optimal recovery. Dietary recommendations traditionally have been determined through nitrogen balance techniques, however, recent research indicates how this method is potentially underestimating protein requirements. Therefore, there is a need to reassess current dietary recommendations in order to meet the demands of physical activity for highly active populations.
Recent efforts to understand protein requirements during rest and following exercise have been completed using the indicator amino acid technique (IAAO). This non-invasive method is reported to provide a robust measure of protein requirements. However, there is limited work in older (≥60 years) active populations.
The purpose of this study is to measure the protein requirements in master cyclists, following an endurance training session, using the non-invasive IAAO technique.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:65+
Sex:Male
Key Eligibility Criteria
Disqualifiers:Uncontrolled Hypertension, ≥2 Chronic Diseases, Others
Must Not Be Taking:Anti-inflammatories
8 Participants Needed
Whey Protein for Diabetes
Little Rock, Arkansas
To examine the effects of twice daily whey protein consumption on blood glucose and insulin in pre-diabetic and diabetic individuals
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:50 - 70
Key Eligibility Criteria
Disqualifiers:Lactose Intolerance, Cancer, Surgery, Others
Must Not Be Taking:Insulin, GLP/GIP, Corticosteroids, Others
40 Participants Needed
RFPM + SmartIntake App Validation for Caloric Intake
Baton Rouge, Louisiana
The primary aim of this small study is to test the validity of the Remote Food Photography Method and an updated SmartIntake app in a sample of adolescents. The investigators will test the validity (accuracy) of the method/app at estimating energy intake in free-living conditions over approximately three days compared to doubly labeled water. This is a small study that has low statistical power, but will provide important data nonetheless and inform future research.
No Placebo Group
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:12 - 18
29 Participants Needed
This trial tests a program where Hispanic fathers and their children learn about healthy eating and exercise together. It targets overweight or obese Hispanic men who are father figures to children aged 5-11. The program aims to help families support each other in making healthier lifestyle choices.
No Placebo Group
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:5 - 65
Key Eligibility Criteria
Disqualifiers:Diabetes, Cardiovascular Disease, Cognitive Impairment, Others
Must Not Be Taking:Weight-affecting Medications
187 Participants Needed
Healthy Kids+ Program for Health Behaviors in Children
Las Cruces, New Mexico
The study will test the effectiveness and examine the sustained effects of weekly programming on enhancing (1) lifestyle behaviors (physical activity, dietary intake, use of technology, amount of sleep), (2) self-efficacy, (3) self-esteem, and (4) readiness to change among children ages 8-11 years.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:8 - 11
Key Eligibility Criteria
Disqualifiers:Not Enrolled In Program
60 Participants Needed
Soda Intake Biomarkers in Healthy Diets
Phoenix, Arizona
Background:
Diet is one of the most modifiable behaviors affecting health. But diet assessment measures that are based on self-report can be inaccurate. Researchers want better ways to address the role of diet in chronic disease. They want to see if stable isotopes can be used to better assess what people eat.
Objective:
To see if stable isotopes can help scientists identify things people eat.
Eligibility:
Healthy adults ages 18 to 65
Design:
Participants will be screened with a medical history and physical exam. They will have blood and urine tests. These tests will be repeated during the study.
Participants will stay in the inpatient unit of the NIH in Phoenix, Arizona, for 13 weeks.
For 7 days, participants will eat a diet prepared by the NIH kitchen. They will get balanced meals that are 50% carbohydrates, 20% protein, and 30% fat. Then participants will be randomly placed on one of 3 diets containing different percentages of carbohydrates from soda.
Participants height and weight will be measured. The amount of fat and muscle in their body will be measured by body scans that are similar to x-rays.
Participants will have oral glucose tolerance tests. They will consume a sugar drink and then give blood samples over 3 hours.
Participants will give hair and stool samples.
Participants will complete a diet questionnaire. It assesses their food intake over 24 hours.
Participants will complete behavioral questionnaires and computer performance tests.
Participants will have fat biopsies taken from their stomach and thigh.
Participants will have three 24-hour stays in a metabolic chamber. It is used to measure metabolism.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 1
Age:18 - 65
Key Eligibility Criteria
Disqualifiers:Diabetes, Thyroid Disorders, Gastrointestinal Disease, Cancer, Others
Must Not Be Taking:Metabolism Drugs
60 Participants Needed
Exogenous Ketones for Obesity
Kelowna, British Columbia
People with obesity have different appetitive responses to stimuli compared to people without obesity. For example, people with obesity have a blunted postprandial ghrelin ('hunger' hormone) response, lower glucagon-like peptide 1 (GLP-1) and peptide-YY (PYY; associated with satiety) compared to people without obesity. Given the favorable effects of exogenous ketones on appetite previously observed in healthy adults of normal body weight, it is possible that these supplements can alter appetite hormones in a manner that may closer match that observed in people without obesity. To explore this research question, investigators will conduct a randomized single-blind cross over study to characterize appetite and dietary intake after ingestion of an exogenous ketone supplement within adults with obesity (compared a control condition without exogenous ketones) and compared to adults without obesity. The research team will also explore differences in postprandial energy expenditure and fuel utilization. Twenty-two healthy young- and middle-aged adults will be included (up to n=26 enrolled). In addition to a baseline visit to measure body composition, participants will undergo two 4.5-hour study visits, one of which will include a ketone diol supplement and one will have a placebo. Participants will be given a 1-day run-in diet prior to each study day to support energy balance. On each study day visit, participants will undergo a resting metabolic rate test (indirect calorimetry) followed by a fasting appetite rating and blood sample collection. Participants will then be provided with a standard breakfast meal (one with the ketone supplement and one with placebo). Appetite ratings and blood sample collection will be repeated 60, 120, and 180 minutes after the meal. Indirect calorimetry will be completed after the 30, 90, and 150 minute assessments. After the 180-minute timepoint, participants will be provided with a buffet-like lunch meal with instructions to eat as much or as little as they would like to determine ad libitum dietary intake at a single meal. To assess free-living ad libitum dietary intake, participants will receive 1.5 days of food boxes tailored to their preferences, with uneaten food returned at the end of the 1.5-day period. This study will be the first to assess the impact of exogenous ketones on appetite in obesity and would help inform future weight loss intervention trials.
No Placebo Group
Trial Details
Trial Status:Recruiting
Age:19 - 45
Key Eligibility Criteria
Disqualifiers:Cardiovascular, Diabetes, Cancer, Thyroid, Others
Must Not Be Taking:Appetite Suppressants, Sleep Aids
22 Participants Needed
Lysine Intake for Breastfeeding
Vancouver, British Columbia
The study aims to establish lysine requirements using the indicator amino acid oxidation (IAAO) method in women exclusively breastfeeding a single infant aged 3-4 months, and how maternal lysine needs change once infant transition to complimentary feeding at a later age of 9-10 months. Each 8-hour study day will have an assigned test lysine intake ranging from deficient to excess. The diets will be provided in a complete protein shake format, meeting all nutrient requirements except for the test lysine intake. Breath samples evaluate the indicator's oxidation to determine protein synthesis in response to lysine intake. Urine and one blood sample will be collected to assess metabolite concentrations.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:20 - 40
Sex:Female
Key Eligibility Criteria
Disqualifiers:Metabolic, Cardiovascular, Neurological, Others
Must Not Be Taking:Estrogen, Anti-dopaminergic, Methyldopa, Others
15 Participants Needed
Why Other Patients Applied
"I've tried several different SSRIs over the past 23 years with no luck. Some of these new treatments seem interesting... haven't tried anything like them before. I really hope that one could work."
ZS
Depression PatientAge: 51
"I have dealt with voice and vocal fold issues related to paralysis for over 12 years. This problem has negatively impacted virtually every facet of my life. I am an otherwise healthy 48 year old married father of 3 living. My youngest daughter is 12 and has never heard my real voice. I am now having breathing issues related to the paralysis as well as trouble swallowing some liquids. In my research I have seen some recent trials focused on helping people like me."
AG
Paralysis PatientAge: 50
"I changed my diet in 2020 and I’ve lost 95 pounds from my highest weight (283). I am 5’3”, female, and now 188. I still have a 33 BMI. I've been doing research on alternative approaches to continue my progress, which brought me here to consider clinical trials."
WR
Obesity PatientAge: 58
"As a healthy volunteer, I like to participate in as many trials as I'm able to. It's a good way to help research and earn money."
IZ
Healthy Volunteer PatientAge: 38
"I've been struggling with ADHD and anxiety since I was 9 years old. I'm currently 30. I really don't like how numb the medications make me feel. And especially now, that I've lost my grandma and my aunt 8 days apart, my anxiety has been even worse. So I'm trying to find something new."
FF
ADHD PatientAge: 31
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We started Power when my dad was diagnosed with multiple myeloma, and I struggled to help him access the latest immunotherapy. Hopefully Power makes it simpler for you to explore promising new treatments, during what is probably a difficult time.
Bask GillCEO at Power
Frequently Asked Questions
How much do Dietary Intake clinical trials pay?
Each trial will compensate patients a different amount, but $50-100 for each visit is a fairly common range for Phase 2–4 trials (Phase 1 trials often pay substantially more). Further, most trials will cover the costs of a travel to-and-from the clinic.
How do Dietary Intake clinical trials work?
After a researcher reviews your profile, they may choose to invite you in to a screening appointment, where they'll determine if you meet 100% of the eligibility requirements. If you do, you'll be sorted into one of the treatment groups, and receive your study drug. For some trials, there is a chance you'll receive a placebo. Across Dietary Intake trials 30% of clinical trials have a placebo. Typically, you'll be required to check-in with the clinic every month or so. The average trial length for Dietary Intake is 12 months.
How do I participate in a study as a "healthy volunteer"?
Not all studies recruit healthy volunteers: usually, Phase 1 studies do. Participating as a healthy volunteer means you will go to a research facility several times over a few days or weeks to receive a dose of either the test treatment or a "placebo," which is a harmless substance that helps researchers compare results. You will have routine tests during these visits, and you'll be compensated for your time and travel, with the number of appointments and details varying by study.
What does the "phase" of a clinical trial mean?
The phase of a trial reveals what stage the drug is in to get approval for a specific condition. Phase 1 trials are the trials to collect safety data in humans. Phase 2 trials are those where the drug has some data showing safety in humans, but where further human data is needed on drug effectiveness. Phase 3 trials are in the final step before approval. The drug already has data showing both safety and effectiveness. As a general rule, Phase 3 trials are more promising than Phase 2, and Phase 2 trials are more promising than phase 1.
Do I need to be insured to participate in a Dietary Intake medical study?
Clinical trials are almost always free to participants, and so do not require insurance. The only exception here are trials focused on cancer, because only a small part of the typical treatment plan is actually experimental. For these cancer trials, participants typically need insurance to cover all the non-experimental components.
What are the newest Dietary Intake clinical trials?
Most recently, we added Toddler Tastes for Dietary Behavior, Whey Protein for Diabetes and Contrave for Obesity to the Power online platform.
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