{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Controlled+beef+diet",
    "query": {
      "intervention": "Controlled beef diet"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 23,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Controlled+beef+diet&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T03:23:06.904Z",
  "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": "NCT02558673",
      "title": "Trimethylamine-N-oxide Production and Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "TMAO dietary precursors",
          "type": "OTHER"
        },
        {
          "name": "Control (or active comparator)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "21 Years to 50 Years · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2014-05",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2016-11-02",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 2,
      "location_summary": "Ithaca, New York",
      "locations": [
        {
          "city": "Ithaca",
          "state": "New York"
        },
        {
          "city": "Ithaca",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02558673"
    },
    {
      "nct_id": "NCT04347447",
      "title": "Effect of Incorporating Lean Beef Into a Protein-rich Diet During Resistance Training on Muscle and Tendon Strength in Older Women",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sarcopenia",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Exercise training",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "60 Years to 80 Years · Female only"
      },
      "enrollment_count": 45,
      "start_date": "2020-05-01",
      "completion_date": "2024-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-08-29",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04347447"
    },
    {
      "nct_id": "NCT03885544",
      "title": "Effects of Consuming Red Meat on the Gut Microbiota in Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diet Modification"
      ],
      "interventions": [
        {
          "name": "Controlled Lacto-ovo vegetarian diet",
          "type": "OTHER"
        },
        {
          "name": "Controlled Unprocessed red meat diet",
          "type": "OTHER"
        },
        {
          "name": "Controlled processed red meat diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "20 Years to 35 Years"
      },
      "enrollment_count": 23,
      "start_date": "2018-01-09",
      "completion_date": "2020-03-23",
      "has_results": false,
      "last_update_posted_date": "2020-07-14",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03885544"
    },
    {
      "nct_id": "NCT05236374",
      "title": "Effects of Daily Beef Intake, as a Component of a Heart-Healthy Diet on Cellular Zinc",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Zinc Deficiency",
        "Inflammation",
        "Metabolic Diseases",
        "Vascular Diseases"
      ],
      "interventions": [
        {
          "name": "Beef protein",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "55 Years to 70 Years"
      },
      "enrollment_count": 20,
      "start_date": "2022-10-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05236374"
    },
    {
      "nct_id": "NCT05616585",
      "title": "Dietary Biomarkers Intervention Core",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Biological Markers",
        "Diet, Healthy",
        "Metabolomics",
        "Nutrition, Healthy"
      ],
      "interventions": [
        {
          "name": "Pharmacokinetic (PK)- Controlled Feeding Diet",
          "type": "OTHER"
        },
        {
          "name": "Dose Response (DR)- Controlled Feeding Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Harvard School of Public Health (HSPH)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 115,
      "start_date": "2023-02-01",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-07",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05616585"
    },
    {
      "nct_id": "NCT06690892",
      "title": "Investigating the Effects of Beef Consumption on Cognitive and Brain Health",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dietary Intervention",
        "Dietary Proteins",
        "Dietary Assessment",
        "Cognitive Ability, General"
      ],
      "interventions": [
        {
          "name": "Ready-to-eat beef in frozen, 5-oz packages",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ready-to-eat beef in frozen, 1-oz packages",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Nebraska Lincoln",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "19 Years to 24 Years"
      },
      "enrollment_count": 240,
      "start_date": "2025-09-22",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "Lincoln, Nebraska",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06690892"
    },
    {
      "nct_id": "NCT03925142",
      "title": "Effects of Replacing Starchy Vegetables and Refined Grains With Beef on Cardio-metabolic Disease Risk Factors (S53)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diet Modification"
      ],
      "interventions": [
        {
          "name": "Controlled healthy vegetarian diet",
          "type": "OTHER"
        },
        {
          "name": "Controlled beef diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "30 Years to 69 Years"
      },
      "enrollment_count": 43,
      "start_date": "2019-06-04",
      "completion_date": "2021-10-28",
      "has_results": false,
      "last_update_posted_date": "2021-12-08",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03925142"
    },
    {
      "nct_id": "NCT05860088",
      "title": "The Impact of Beef on Muscle Fatigue in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Muscle Weakness",
        "Muscle; Fatigue, Heart",
        "Older Adults"
      ],
      "interventions": [
        {
          "name": "Beef Diet",
          "type": "OTHER"
        },
        {
          "name": "Vegetarian Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 24,
      "start_date": "2023-07-10",
      "completion_date": "2025-11-21",
      "has_results": false,
      "last_update_posted_date": "2026-05-01",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05860088"
    },
    {
      "nct_id": "NCT07524244",
      "title": "Ketogenic and Carnivore (Lion) Diets for Inflammatory Bowel Disease and Rheumatoid Arthritis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rheumatoid Arthritis (RA)",
        "Crohn's Disease (CD)",
        "Ulcerative Colitis (UC)"
      ],
      "interventions": [
        {
          "name": "Ketogenic diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Carnivore (Lion) Diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Fuller Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 160,
      "start_date": "2026-02-17",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-04-16",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07524244"
    },
    {
      "nct_id": "NCT03202680",
      "title": "Lean Beef Consumption and Insulin Sensitivity in Men and Women With Risk Factors for Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Syndrome",
        "PreDiabetes"
      ],
      "interventions": [
        {
          "name": "USDA Style Diet",
          "type": "OTHER"
        },
        {
          "name": "Lean Beef Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Midwest Center for Metabolic and Cardiovascular Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "18 Years to 74 Years"
      },
      "enrollment_count": 49,
      "start_date": "2017-07-06",
      "completion_date": "2019-07-16",
      "has_results": false,
      "last_update_posted_date": "2019-07-24",
      "last_synced_at": "2026-09-04T03:23:06.904Z",
      "location_count": 1,
      "location_summary": "Boca Raton, Florida",
      "locations": [
        {
          "city": "Boca Raton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03202680"
    }
  ]
}