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<a href="/research-funding/research-programs/translational-research-therapeutic-discovery-development/pre-clinical-development">Pre-Clinical Development</a>
</li>
<li class="ln-collapsed">
<a href="/research-funding/research-programs/translational-research-therapeutic-discovery-development/clinical-development">Clinical Development</a>
</li>
</ul>
</li>
</ul>
</nav>
<article class="dk-content">
<h1 itemprop="name">Nutrient Metabolism, Status, & Assessment</h1>
<p class="abstract">
Basic, clinical, and translational research on the requirements, bioavailability, and metabolism of nutrients and other dietary components.
</p>
<div class="expandable" data-collapse="both" >
<p><span>The
Nutrient Metabolism, Status, and Assessment program supports basic and clinical
studies related to the absorption, metabolism, bioavailability, and
requirements of nutrients and other dietary components. This includes
research on processes at the organ, cellular, and subcellular levels in normal
and diseased states. Suitable studies include those that explore how
the nutritional status of an organism, such as over-nutrition and
under-nutrition, affects physiological and metabolic functions contributing to
the pathophysiology of diseases of interest to the NIDDK. Specific areas
of interest include the role of gut-brain signals in nutrient sensing;
mechanisms of action/interaction of nutrients within the body; the process of
food digestion in the gastrointestinal tract; and the absorption and transport
of water, ions, sugars, amino acids/peptides, lipids, vitamins, minerals, and
other macromolecules and bioactive components. Other supported studies
include those that explore modifications of nutrient metabolism and/or status due
to genetic variation, altered gut barrier function, and/or in response to
stress, circadian and diurnal variations, drug use, toxicants, bariatric
surgery and physical activity in health and disease. The program also
supports studies that explore how dietary modifications affect gene regulation
and expression at the transcriptional, translational, epigenetic, and
functional level, including relevant nutrigenetic and nutrigenomic approaches. </span></p>
<p><span>Appropriate
studies explore the impact of dietary modification on the human gut microbiome
and/or dysregulation of gut microbiome on nutrient absorption, gut
barrier function, and permeability and metabolism. Mechanistic
studies that explore the role of prebiotic and probiotic metabolism
on microbiome compositional and functional changes and host physiology are also
appropriate.</span></p>
<p><span>This
program also supports studies that explore mathematical models contributing to
the understanding of whole-body energy balance and metabolism, and of metabolic
fluxes in cells, tissues, and organs. A particular focus of interest
is on models that allow the integration of data gained from a variety of
technological approaches, such as tracer studies, calorimetry, plasma
hormone/cytokines, metabolomics, genomics, epigenomics, and proteomics, and on
those models that would be of clinical utility, including prediction of plasma
glucose levels in diabetes, nutritional partitioning, nutritional status, and
weight management.</span></p>
<p><span>The
program supports research on specific metabolic considerations related to
alternative forms of nutrient delivery and use, such as total parenteral and
enteral nutrition. Other supported studies involve research for
improving methods to determine dietary intake and compliance, including dietary
recall methodologies and questionnaires; novel approaches for collecting
information on dietary intake, identification and development of biomarkers of
intake and exposure; and the development of methods and assays for assessing
nutritional status and for determining specific nutritional requirements in
health and disease.</span></p>
</div>
<div class="program-staff">
<h2>NIDDK Program Staff</h2>
<ul>
<li>
<a href="/about-niddk/staff-directory/biography/evans-mary">Mary Evans, Ph.D.</a>
Multi-center Clinical Studies in Nutrition &amp; Obesity; Nutrition Obesity Research Centers; Diet &amp; Physical Activity Assessment Methodology
</li>
<li>
<a href="/about-niddk/staff-directory/biography/maruvada-padma">Padma Maruvada, Ph.D.</a>
Nutrient Metabolism; Clinical Obesity and Nutrition
</li>
</ul>
</div>
<section class="fs-results" aria-live="polite">
<h2>Recent Funding Opportunities</h2>
<a class="cta" href="/research-funding/current-opportunities?rd=dg">View More Recent Funding Opportunities</a>
<ol class="result-items funding-opportunities">
<li data-filters="rd=db,dg,em,hm,kd,lv,nu,ob,pn,ur&amp;at=par&amp;cl=ei&amp;ac=rp">
<div class="top">
<span>
<label>Posted:</label>
<time datetime="2025-01-10">1/10/2025</time>
</span>
<a href="https://grants.nih.gov/grants/guide/pa-files/par-25-090.html" class="no-disclaimer">PAR-25-090</a>
</div>
<h3>NIDDK High Risk Multi-Center Clinical Study Implementation Planning Cooperative Agreements (U34 Clinical Trial Optional)</h3>
<div class="bottom"><a href="/research-funding/current-opportunities/par-25-090">Summary</a></div>
</li>
<li data-filters="rd=db,dg,em,hm,kd,lv,nu,ob,pn,ur&amp;at=par&amp;cl=jf&amp;ac=trn">
<div class="top">
<span>
<label>Posted:</label>
<time datetime="2025-01-10">1/10/2025</time>
</span>
<a href="https://grants.nih.gov/grants/guide/pa-files/par-25-091.html" class="no-disclaimer">PAR-25-091</a>
</div>
<h3>Limited Competition: Small Grant Program for NIDDK K01/K08/K23/K25 Recipients (R03 Clinical Trial Optional)</h3>
<div class="bottom"><a href="/research-funding/current-opportunities/par-25-091">Summary</a></div>
</li>
<li data-filters="rd=db,dg,em,hm,kd,lv,nu,ob,pn,ur&amp;at=par&amp;cl=ei,jf&amp;ac=rp">
<div class="top">
<span>
<label>Posted:</label>
<time datetime="2025-01-10">1/10/2025</time>
</span>
<a href="https://grants.nih.gov/grants/guide/pa-files/par-25-312.html" class="no-disclaimer">PAR-25-312</a>
</div>
<h3>Time-Sensitive Evaluation of Policies Affecting Health Behaviors and Chronic Disease Risk (R01-Clinical Trial Not Allowed)</h3>
<div class="bottom"><a href="/research-funding/current-opportunities/par-25-312">Summary</a></div>
</li>
<li data-filters="rd=db,dg,em,hm,kd,lv,nu,ob,pn,ur&amp;at=pas&amp;cl=ei,jf&amp;ac=rp">
<div class="top">
<span>
<label>Posted:</label>
<time datetime="2025-01-08">1/8/2025</time>
</span>
<a href="https://grants.nih.gov/grants/guide/pa-files/pas-25-073.html" class="no-disclaimer">PAS-25-073</a>
</div>
<h3>Priority HIV/AIDS Research within the Mission of NIDDK (R01 Clinical Trial Optional)</h3>
<div class="bottom"><a href="/research-funding/current-opportunities/pas-25-073">Summary</a></div>
</li>
<li data-filters="rd=db,dg,em,hm,kd,lv,nu,ob,pn,ur&amp;at=pas&amp;cl=ei,jf&amp;ac=rp">
<div class="top">
<span>
<label>Posted:</label>
<time datetime="2025-01-08">1/8/2025</time>
</span>
<a href="https://grants.nih.gov/grants/guide/pa-files/pas-25-102.html" class="no-disclaimer">PAS-25-102</a>
</div>
<h3>Small R01s for Clinical Trials Targeting Diseases within the Mission of NIDDK (R01 Clinical Trial Required)</h3>
<div class="bottom"><a href="/research-funding/current-opportunities/pas-25-102">Summary</a></div>
</li>
</ol>
<a class="cta" href="/research-funding/current-opportunities?rd=dg">View More Recent Funding Opportunities</a>
</section> <div >
</div>
<h2 id="related-links">Related Links</h2>
<ul class="thumbnail-list">
<li>
<i class="stack-icon pentagon-arrow indigo medical-microscope"></i>
<div class="title"><a href="https://clinicaltrials.gov/search?cond=gastrointestinal+diseases&spons=NIDDK&aggFilters=status:not+rec+act&viewType=Table">NIDDK Active Trials in Digestive Disease</a></div>
<div>
<p>View related clinical trials from ClinicalTrials.gov.</p>
</div>
</li>
<li>
<i class="stack-icon pentagon-arrow blue people-funding"></i>
<div class="title"><a href="https://public.csr.nih.gov/StudySections">NIH Study Sections</a></div>
<div>
<p>
Study sections conduct initial peer review of applications in a designated scientific area.
Visit the NIHs Center for Scientific Review website to search for study sections.
</p>
</div>
</li>
</ul><hr>
<h2 id="resources">Research Resources</h2>
<p>
NIDDK makes publicly supported resources, data sets, and studies available to researchers to accelerate the rate and lower the cost of new discoveries.
</p>
<ul>
<li>
<a href="/research-funding/human-subjects-research/ancillary-major-ongoing-clinical-studies">Ancillary Studies to Major Ongoing Clinical Studies</a> to extend our knowledge of the diseases being studied by the parent study investigators under a defined protocol or to study diseases and conditions not within the original scope of the parent study but within the mission of the NIDDK.
</li>
<li>
<a href="https://repository.niddk.nih.gov/home/">NIDDK Central Repository</a> for access to clinical resources including data and biospecimens from NIDDK-funded studies.
</li>
<li>
<a href="https://dknet.org/">NIDDK Information Network (dkNET)</a> for simultaneous search of digital resources, including multiple datasets and biomedical resources relevant to the mission of the NIDDK.
</li>
</ul>
<h2 id="additional-programs">Additional Research Programs</h2>
<div class="tabs">
<h3><i class="hide-mobile">Research </i>Training</h3>
<figure class="fill">
<a href="/research-funding/training-career-development"><img alt="Funding Eligibility by Career Level arrow graphic" src="/-/media/Images/Components/research-funding/rtcd-career-arrow.svg?h=64&amp;w=670&amp;hash=2504F9BEAC7EC40339F51F64ED03BEA9" width="670" height="64" style="max-width: 670px;" /></a></figure>
<p>
NIDDK supports the training and career development of medical and graduate students, postdoctoral
fellows, and physician scientists through institutional and individual grants.
</p>
<a class="cta" href="/research-funding/training-career-development">Learn about NIDDK Research Training Programs</a>
<h3>Small Business</h3>
<h4><a href="/research-funding/research-programs/small-business">Small Business Programs</a></h4>
<p>
NIDDK participates in the Small Business Innovation Research (SBIR) and Small Business Technology
Transfer (STTR) programs.
These programs support innovative research conducted by small businesses that has the potential for
commercialization.
</p>
<a class="cta" href="/research-funding/research-programs/small-business">Learn about NIDDK Small Business Programs</a>
<h3>Human Subjects<i class="hide-mobile"> Research</i></h3>
<h4><a href="/research-funding/human-subjects-research">Human Subjects Research</a></h4>
<p>
NIDDK provides funding for pivotal clinical research, from preliminary clinical feasibility to large multi-center studies.
</p>
<a class="cta" href="/research-funding/human-subjects-research">Learn about Human Subjects Research</a>
<h3>Translational<i class="hide-mobile"> Research</i></h3>
<figure class="fill">
<a href="/research-funding/research-programs/translational-research-therapeutic-discovery-development"><img alt="Translational Research process graphic" src="/-/media/Images/Components/research-funding/translational-research.svg?h=133&amp;w=760&amp;hash=3953D09C6DDCB1B1A5D196FD8C011104" width="760" height="133" style="max-width: 760px;" /></a></figure>
<p>
NIDDK provides funding opportunities and resources to encourage translation of basic discoveries
into novel therapeutics.
</p>
<a class="cta" href="/research-funding/research-programs/translational-research-therapeutic-discovery-development">Learn about NIDDK Translational Research Opportunities</a>
</div>
<section class="sc-slider sc-events">
<div class="grid">
<h2 id="meetings-workshops">Meetings &amp; Workshops</h2>
</div>
<div class="sc-inner-wrap">
<div class="sc-slider-paginator">
<button type="button" class="sc-previous" aria-label="Show previous cards"></button>
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<div class="sc-cards">
<div class="sc-card">
<a href="https://www.niddk.nih.gov/news/meetings-workshops/2025/new-pi-workshop-2025">
<div class="sc-card-image">
<img src="/-/media/Images/News/Meetings/2024-Meetings/NIDDK_2025-New-PI-Web-Rotator_400x330_P3.png" alt="NIDDK New PI Rotator" width="400" height="300" />
</div>
<div class="sc-card-header">
NIDDK New PI Workshop
</div>
<div class="sc-card-copy">
<p>
<time datetime="2025-03-13">March 13</time>
- <time datetime="2025-03-14">14, 2025</time>
<br />
Rockville, MD <br />
Webinar
</p>
</div>
</a>
</div>
<div class="sc-card">
<a href="https://www.niddk.nih.gov/news/meetings-workshops/2025/k-awardees-2025">
<div class="sc-card-image">
<img src="/-/media/Images/News/Meetings/2024-Meetings/K-Awardees-Web-Rotator_400x300_2025_P1.jpg" alt="K Awardees Workshop Rotator" width="400" height="300" />
</div>
<div class="sc-card-header">
2025 NIDDK K Awardees Workshop
</div>
<div class="sc-card-copy">
<p>
<time datetime="2025-04-03">April 3</time>
- <time datetime="2025-04-04">4, 2025</time>
<br />
Bethesda, MD <br />
</p>
</div>
</a>
</div>
<div class="sc-card">
<a href="http://dknet.org">
<div class="sc-card-image">
<img src="/-/media/Images/Components/Cards/Featured-Cards/2020-Feature-Cards/dkNET-rotator-v3.jpg?as=0&amp;h=300&amp;iar=0&amp;w=400&amp;hash=D8E6EACC5FB46775B352E9D41EFF0854" alt="dkNET slider card." width="400" height="300" />
</div>
<div class="sc-card-header">
dkNET
</div>
<div class="sc-card-copy">
<p>
Supports researchers with tools to enhance scientific rigor, reproducibility, and transparency, and provides a big data knowledge base for genomic and pathway hypothesis generation. </p>
</div>
</a>
</div>
<div class="sc-card view-more">
<a href="/news/meetings-workshops">
<div class="sc-card-image">
<div>
<img src="/-/media/Images/Components/News-And-Meetings/more-meetings.png" alt="View All Meetings" width="400" height="300" />
</div>
</div>
<div class="sc-card-header">
View all Meetings & Workshops
</div>
<div class="sc-card-copy">
<p>
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</div>
</a>
</div>
</div>
</div>
</div>
<div class="grid">
<a class="cta" href="/news/meetings-workshops">View all Meetings &amp; Workshops</a>
</div>
</section>
<div >
<ul class="thumbnail-list">
<li>
<i class="stack-icon pentagon-arrow green node-cluster"></i>
<div class="title">NIH Common Fund</div>
<div>
<p>Learn about current projects and view funding opportunities sponsored by the <a href="https://commonfund.nih.gov">NIH Common Fund</a>.</p>
</div>
</li>
<li>
<i class="stack-icon pentagon-arrow orange grant-apply"></i>
<div class="title">Planning to Apply? Register Early</div>
<div>
<p>Registration is required at <a href="https://era.nih.gov">eRA Commons</a> and <a href="http://grants.gov">grants.gov</a> and can take 4 weeks.</p>
</div>
</li>
</ul>
</div>
<div class="dk-review-date">Last Reviewed October 2024</div>
</article>
</div>
</div>
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