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Found 139 Healthy Volunteers trials

A listing of Healthy Volunteers medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.

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Investigator 2
18 years - 45 years
Accepts healthy volunteer
All genders
This project aims to create a methodological framework, including the discovery and validation of novel biomarker panels to decipher the impact of plant-based protein intake on health biomarkers. Moreover, the possibility of predicting biomarkers production will be tested by a colonic in vitro fermentation study using study participants' faecal samples.
18 years - 65 years
Accepts healthy volunteer
All genders
The purpose of this study is to examine the gastrointestinal (stomach and intestines) anatomy and function using magnetic resonance imaging (MRI).
The Building Blocks of Pregnancy Biobank
14 years - 100 years
Female
The purpose of this study is to collect biological samples (like blood, urine, saliva, nasal swabs, and breast milk) and personal health information about your health and your pregnancy.  The samples and information will be used in research studies in the future.  This collection of biological samples and health information …
The Beef and Heart Health Study
a
app tester
30 years - 69 years
Accepts healthy volunteer
All genders
The purpose of this study is to assess the effect of substituting predominantly starchy vegetables and refined grains with 6 oz/day of lean unprocessed beef in the USDA's Healthy Vegetarian Eating Patter on cardio metabolic risk factors in healthy adults.
Effects of consuming ounce equivalent portions of fresh pork versus nuts, beans, and eggs, as defined by the Dietary Guidelines for Americans on essential amino acid substrate availability for protein anabolism in older adults
55 years - 75 years
Accepts healthy volunteer
All genders
This study is looking at how different sources of protein influence blood amino acids (building blocks for proteins in the body).
65 years - 100 years
Accepts healthy volunteer
All genders
SEEKING OLDER ADULTS WHO KEEP RECORDS OF ANYTHINGS IN THEIR DAILY LIVES   Do you keep track of anything in your daily life? Do you like taking pictures?  In this study, we want to explore older adults' interests, intentions, and engagement in recording or keeping track of different types of …
3 years - 39 years
All genders
We call this new study the HELLO Study. HELLO stands for Hearing, Executive Function, Language and Learning Outcomes. The purpose of this study is to better understand how children with hearing loss develop spoken language skills and executive functioning, such as paying attention, remembering things, and staying focused. The new …
Dose-response effect of dietary nitrate on muscle function in older individuals
65 years - 79 years
All genders
The purpose of this study is to see if drinking beetroot juice (BRJ) is beneficial for aging subjects.
55 years - 74 years
Accepts healthy volunteer
Female
The purpose of this study is to investigate the effects of beetroot juice consumption on the ability to exercise. We are also interested in understanding how beetroot juice may improve blood vessel function in postmenopausal women.
30 years - 90 years
All genders
The overall aim of this study is to evaluate whether a Mediterranean diet with different types of carbohydrate-foods (pasta vs. rice) can improve markers of health to the same degree.