Effects of equol supplementation on cognitive decline and arterial stiffness in older adults

Arterial Stiffness, Cognition, and Equol (ACE)

NIH-funded research University of Pittsburgh at Pittsburgh · NIH-11019802

This study is looking at whether taking a daily soy-based supplement called equol can help improve brain health and blood vessel flexibility in people aged 70 and older who don’t have dementia, by comparing the effects of the supplement to a placebo over two years.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Pittsburgh at Pittsburgh NIH-funded
Lab location1 site (Pittsburgh, United States)
Project IDNIH-11019802 on NIH RePORTER

What this research studies

This research investigates how a daily supplement of equol, a compound derived from soy, affects cognitive decline and arterial stiffness in individuals aged 70 and older who do not have dementia. Over a period of 24 months, 400 participants will receive either the equol supplement or a placebo, allowing researchers to compare the cognitive health and arterial function between the two groups. The study aims to understand the relationship between equol production, cognitive health, and the presence of white matter lesions in the brain, which are linked to aging and cognitive impairment.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals aged 70 and older who do not have dementia and are interested in the potential cognitive benefits of equol supplementation.

Not a fit: Patients who are younger than 70 or those already diagnosed with dementia may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to new dietary recommendations or supplements that help slow cognitive decline in older adults.

How similar studies have performed: Previous studies have shown mixed results regarding the effects of isoflavones on cognition, but this specific approach focusing on equol supplementation is relatively novel.

Where this research is happening

Pittsburgh, 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.