{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Walnut+consumption",
    "query": {
      "intervention": "Walnut consumption"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 26,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Walnut+consumption&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T02:17:20.828Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT04849949",
      "title": "Black Walnuts and Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Control",
          "type": "OTHER"
        },
        {
          "name": "Black walnut",
          "type": "OTHER"
        },
        {
          "name": "English walnut",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Georgia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 34,
      "start_date": "2017-08-10",
      "completion_date": "2018-02-27",
      "has_results": false,
      "last_update_posted_date": "2021-04-20",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Athens, Georgia",
      "locations": [
        {
          "city": "Athens",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04849949"
    },
    {
      "nct_id": "NCT01072864",
      "title": "Effects of California Walnuts on Vascular Function in Postmenopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "Walnuts",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 70 Years · Female only"
      },
      "enrollment_count": 5,
      "start_date": "2010-06",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2010-11-01",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01072864"
    },
    {
      "nct_id": "NCT04066816",
      "title": "Ellagic Acid, Urolithin and Colonic Microbial Communities Affected by Walnut Consumption",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colo-rectal Cancer",
        "Colon Cancer",
        "Diet Habit"
      ],
      "interventions": [
        {
          "name": "Walnuts",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "UConn Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "50 Years to 65 Years"
      },
      "enrollment_count": 47,
      "start_date": "2019-05-20",
      "completion_date": "2021-04-08",
      "has_results": false,
      "last_update_posted_date": "2021-11-26",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04066816"
    },
    {
      "nct_id": "NCT07429903",
      "title": "Effect of Daily Walnut Consumption on Memory in Subjects With Long-COVID",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Long-COVID",
        "Brain Fog",
        "Cognition",
        "Memory"
      ],
      "interventions": [
        {
          "name": "whole food - walnuts",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 31,
      "start_date": "2023-09-21",
      "completion_date": "2025-01-24",
      "has_results": false,
      "last_update_posted_date": "2026-02-24",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07429903"
    },
    {
      "nct_id": "NCT00626691",
      "title": "The Effects of Walnuts on Antioxidant Capacity and Nutritional Status in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Walnut consumption",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2007-02",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2009-02-19",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00626691"
    },
    {
      "nct_id": "NCT05441748",
      "title": "Walnut Consumption and Gut Microbiota",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Walnuts",
          "type": "OTHER"
        },
        {
          "name": "Walnut Oil",
          "type": "OTHER"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "25 Years to 75 Years"
      },
      "enrollment_count": 30,
      "start_date": "2022-06-01",
      "completion_date": "2024-07",
      "has_results": false,
      "last_update_posted_date": "2023-06-18",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05441748"
    },
    {
      "nct_id": "NCT06942351",
      "title": "Effect of Walnuts on Cognitive Function and Gut Microbiome in Older Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging",
        "Inflammation Biomarkers"
      ],
      "interventions": [
        {
          "name": "Walnuts",
          "type": "OTHER"
        },
        {
          "name": "Crackers",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Oregon State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2025-06-09",
      "completion_date": "2029-05",
      "has_results": false,
      "last_update_posted_date": "2026-08-07",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Corvallis, Oregon",
      "locations": [
        {
          "city": "Corvallis",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06942351"
    },
    {
      "nct_id": "NCT02501889",
      "title": "The Lean Living Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity"
      ],
      "interventions": [
        {
          "name": "Walnut-rich weight loss diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard weight loss diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 100,
      "start_date": "2015-08",
      "completion_date": "2017-06",
      "has_results": false,
      "last_update_posted_date": "2017-10-26",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02501889"
    },
    {
      "nct_id": "NCT06644560",
      "title": "A Nutrition & Exercise Prehabilitation Intervention on Inflammatory Biomarkers in AI Cancer Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Prehabilitation Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 30,
      "start_date": "2025-11-13",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06644560"
    },
    {
      "nct_id": "NCT00901043",
      "title": "Effects of Walnut Consumption on Endothelial Function in Type 2 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "DIABETES MELLITUS TYPE 2"
      ],
      "interventions": [
        {
          "name": "Walnut supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ad lib diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Griffin Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "35 Years to 75 Years"
      },
      "enrollment_count": 24,
      "start_date": "2007-10",
      "completion_date": "2008-09",
      "has_results": false,
      "last_update_posted_date": "2020-03-26",
      "last_synced_at": "2026-09-03T02:17:20.828Z",
      "location_count": 1,
      "location_summary": "Derby, Connecticut",
      "locations": [
        {
          "city": "Derby",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00901043"
    }
  ]
}