{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Diet+Surveys",
    "query": {
      "condition": "Diet Surveys"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 14,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Diet+Surveys&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T01:53:39.208Z",
  "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": "NCT04858971",
      "title": "Survey of Diet and Health Beliefs",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dietary Guidelines"
      ],
      "interventions": [
        {
          "name": "Perception of information source",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "USDA Grand Forks Human Nutrition Research Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2021-06-21",
      "completion_date": "2021-09-24",
      "has_results": false,
      "last_update_posted_date": "2024-05-16",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Grand Forks, North Dakota",
      "locations": [
        {
          "city": "Grand Forks",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04858971"
    },
    {
      "nct_id": "NCT03102411",
      "title": "Impact of Diet on Functional Gastrointestinal Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastrointestinal Disorder, Functional"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "TriHealth Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 1881,
      "start_date": "2017-03-09",
      "completion_date": "2017-09-15",
      "has_results": true,
      "last_update_posted_date": "2019-01-25",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03102411"
    },
    {
      "nct_id": "NCT06339957",
      "title": "Rheumatology Diet Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diet Habit",
        "Rheumatologic Disease",
        "Autoimmune Diseases",
        "Rheumatoid Arthritis",
        "Psoriatic Arthritis",
        "Ankylosing Spondylitis",
        "Dermatomyositis/polymyositis",
        "Sjogren's Syndrome",
        "Systemic Lupus Erythematous",
        "Scleroderma",
        "Fibromyalgia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Central Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 500,
      "start_date": "2024-03-01",
      "completion_date": "2025-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-12-06",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06339957"
    },
    {
      "nct_id": "NCT07613645",
      "title": "Lifestyle and Recurrent Clostridioides Difficile Infection (CDI)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Clostridioides Difficile Infection"
      ],
      "interventions": [
        {
          "name": "Health counseling sessions",
          "type": "OTHER"
        },
        {
          "name": "Diet (control diet)",
          "type": "OTHER"
        },
        {
          "name": "Diet (experimental diet)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2026-06-05",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07613645"
    },
    {
      "nct_id": "NCT00978406",
      "title": "National Cancer Institute Food Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Validation Study",
        "Diet Surveys",
        "Nutritional Assessment",
        "Epidemiology",
        "Methodologic Study"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "20 Years to 70 Years"
      },
      "enrollment_count": 83,
      "start_date": "2009-08-26",
      "completion_date": "2020-02-26",
      "has_results": false,
      "last_update_posted_date": "2020-03-03",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Rockville, Maryland",
      "locations": [
        {
          "city": "Rockville",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00978406"
    },
    {
      "nct_id": "NCT00394576",
      "title": "Assessing Novel Methods of Improving Patient Education of Nutrition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Internet-based nutrition module along with usual care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "usual care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 54,
      "start_date": "2006-11",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2019-05-06",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00394576"
    },
    {
      "nct_id": "NCT05309330",
      "title": "Virtual Celiac Symptoms Study in Adults and Teenagers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Celiac Disease"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 480,
      "start_date": "2022-08-16",
      "completion_date": "2023-03-04",
      "has_results": false,
      "last_update_posted_date": "2023-03-10",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Lexington, Massachusetts",
      "locations": [
        {
          "city": "Lexington",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05309330"
    },
    {
      "nct_id": "NCT04005456",
      "title": "Personalized Lifestyle Intervention for Improving Functional Health Outcomes Using N-of-1 Tent-Umbrella-Bucket Design",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health, Subjective",
        "Gastrointestinal Dysfunction",
        "Cardiovascular Risk Factor",
        "Autoimmune Diseases",
        "Dental Diseases",
        "Hormone Disturbance",
        "Neurocognitive Dysfunction"
      ],
      "interventions": [
        {
          "name": "Supplements and/or medical foods",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Behavioral change support program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Food plan",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Metagenics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 400,
      "start_date": "2018-09-01",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-10-30",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Gig Harbor, Washington",
      "locations": [
        {
          "city": "Gig Harbor",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04005456"
    },
    {
      "nct_id": "NCT07265648",
      "title": "Assessing Diet, Stress Scores, and Other Health Metrics in Healthy Northern California Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Stress",
        "Stool Frequency",
        "Food Allergies",
        "Diet Surveys",
        "Demographic Data"
      ],
      "interventions": [
        {
          "name": "Online Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "USDA, Western Human Nutrition Research Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 300,
      "start_date": "2025-12-08",
      "completion_date": "2026-01-20",
      "has_results": false,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07265648"
    },
    {
      "nct_id": "NCT03251157",
      "title": "Dietary Intake in Adults From the GA2LEN Folow-up Survey",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma",
        "Lung Function Decreased",
        "Food Allergy",
        "Allergic Sensitisation",
        "Allergic Rhinitis",
        "COPD",
        "Atopy"
      ],
      "interventions": [
        {
          "name": "Dietary intake of various nutrients, foods and biocompounds",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "15 Years to 75 Years"
      },
      "enrollment_count": 3500,
      "start_date": "2007-01-01",
      "completion_date": "2010-12-31",
      "has_results": false,
      "last_update_posted_date": "2017-08-16",
      "last_synced_at": "2026-07-23T01:53:39.208Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03251157"
    }
  ]
}