How diet and gut bacteria affect heart disease risk

Dietary Etiology of Heart Disease

NIH-funded research Harvard University D/b/a Harvard School of Public Health · NIH-11320121

This project looks at whether gut bacteria and the metabolites they produce, linked to diet and alcohol use, can predict future coronary heart disease in adults.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionHarvard University D/b/a Harvard School of Public Health NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-11320121 on NIH RePORTER

What this research studies

Researchers will follow adults over time and collect stool and blood samples to measure gut microbial composition and metabolites. They will link those molecular patterns with participants' diets, alcohol use, and later heart events. By comparing people who do and do not develop coronary heart disease, the team hopes to find gut- and diet-related signals that come before disease. The work uses prospective data rather than one-time comparisons so it can better suggest which signals might come first.

Who could benefit from this research

Good fit: Adults willing to provide stool and blood samples, share diet and alcohol information, and be followed over time for heart outcomes are ideal candidates.

Not a fit: People who already have advanced or treated coronary artery disease are less likely to receive direct benefit from this risk-focused research.

Why it matters

Potential benefit: If successful, this work could identify early markers or dietary/microbiome targets to help prevent coronary heart disease.

How similar studies have performed: Prior cross-sectional studies have linked gut microbes and metabolites to heart disease, but prospective metabolome-based prediction is newer and less established.

Where this research is happening

Boston, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.