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Pay GuideFirst-Timer GuideCategoriesBrowse TrialsAboutContact
Pay GuideFirst-Timer GuideCategoriesBrowse TrialsAboutContact
I'm aGuineaPig

The easiest way to find paid clinical trials for healthy volunteers. Live data from ClinicalTrials.gov with pay estimates and eligibility matching.

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Data from ClinicalTrials.gov

imaguineapig.com pulls live data from ClinicalTrials.gov (NIH/NLM). Pay estimates are approximate ranges based on study type and are not confirmed by sponsors. We do not provide medical advice. Always contact the study team directly to confirm compensation, eligibility, and risks.

GuineaPig/Categories/Diet & Nutrition Trials

Diet & Nutrition Trials
for Healthy Volunteers

From gut microbiome research to supplement testing, diet and nutrition studies are growing fast. These trials often have simpler protocols and shorter commitments.

2,593

Active Trials

$500 - $2,000

Typical Pay (estimated)

1-4 weeks

Duration

Great for first-time participants

Featured Trial

Highest Paying in Category
$1,500 – $12,000

Estimated compensation

Phase 1/2a Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Effect on Body Weight of RN3161 as Monotherapy and in Combination With Tirzepatide in Adults With Overweight and Obesity

Ikaria Bioscience Pty Ltd

MelbournePhase 1 / Phase 2104 enrolling
View trial details

All Diet Trials

View all 2,593
N/A
$50 – $1,000

Est. compensation

Effects of Operational Naps on Blood Pressure and Performance Among Night Shift Workers

University of Pittsburgh

Pittsburgh, Pennsylvania130 enrolling
N/A
$50 – $1,000

Est. compensation

Omega-3 Fatty Acids as Regulators of Brown Adipose Tissue During Cold Exposure

Indiana University

Bloomington, Indiana30 enrolling
N/A
$50 – $1,000

Est. compensation

Effects of P24 on Postprandial Aminoacidemia

Amplifye

Davis, California30 enrolling
N/A
$50 – $1,000

Est. compensation

Sleep-dependent Learning in Aging

University of Massachusetts, Amherst

Amherst, Massachusetts584 enrolling
N/A
$50 – $1,000

Est. compensation

Survey Assessing How Consumers Adapt Their Diet in Response to Health Claim Messaging

St. Boniface Hospital

Winnipeg, Manitoba384 enrolling
N/A
$50 – $1,000

Est. compensation

Multimodal Prehabilitation in Cancer Surgery

Università Vita-Salute San Raffaele

Catanzaro, Italy400 enrolling
N/A
$50 – $1,000

Est. compensation

Mechanism Study of Yangyin Roujin Formula in the Treatment of Fibromyalgia Syndrome

Juan Jiao

Beijing, Beijing Municipality60 enrolling
N/A
$50 – $1,000

Est. compensation

Gut-Brain Neural Coupling in Spinal Cord Injury

University of Miami

Miami, Florida28 enrolling
N/A
$50 – $1,000

Est. compensation

Beverage Hydration Index of Different Solutions

University of Memphis

Memphis, Tennessee30 enrolling
N/A
$50 – $1,000

Est. compensation

The Osteoarthritis Prevention Study

Wake Forest University

Boston, Massachusetts1,230 enrolling
N/A
$50 – $1,000

Est. compensation

The Ohio State University (OSU) SCREEN Community Program

Ohio State University Comprehensive Cancer Center

Columbus, Ohio2,067 enrolling
View all 2,593 trials

Explore Other Categories

PsychedelicVaccineWeight LossBrain & NeurosciencePharmaceutical Drug Studies

Learn more: How Much Do Trials Pay? · First-Timer's Guide

GuineaPig pulls live data from ClinicalTrials.gov (NIH/NLM). Pay estimates are approximate ranges based on study type and are not confirmed by sponsors. Eligibility indicators use limited criteria only. We do not provide medical advice. Always contact the study team directly to confirm compensation, full eligibility, and risks before enrolling.