{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Energy+Density%2FPortion+Size",
    "query": {
      "intervention": "Energy Density/Portion Size"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T22:50:08.205Z",
  "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": "NCT06215131",
      "title": "Feasibility of Immersive Virtual Reality Dietician Program in Metabolic-dysfunction Associated Steatotic Liver Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fatty Liver, Nonalcoholic",
        "Weight Loss",
        "Virtual Reality",
        "Implementation Science"
      ],
      "interventions": [
        {
          "name": "In-person dietary weight loss counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Virtual reality dietary weight loss counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "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": "2024-07-01",
      "completion_date": "2025-09-23",
      "has_results": false,
      "last_update_posted_date": "2025-10-31",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06215131"
    },
    {
      "nct_id": "NCT02299531",
      "title": "Effects of Portion Size and Energy Density of a Single Meal in Preschool Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behaviors"
      ],
      "interventions": [
        {
          "name": "Varying meal energy density and portion size",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "3 Years to 6 Years"
      },
      "enrollment_count": 131,
      "start_date": "2013-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-11-24",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02299531"
    },
    {
      "nct_id": "NCT01729390",
      "title": "Varying the Energy Density and Portion Size of the Main Course After a First-course Salad",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Energy density and portion size feeding study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 45 Years · Female only"
      },
      "enrollment_count": 53,
      "start_date": "2010-09",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2012-11-20",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01729390"
    },
    {
      "nct_id": "NCT03271801",
      "title": "Skills Training Within a Family-based Obesity Treatment Intervention",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity, Childhood"
      ],
      "interventions": [
        {
          "name": "child health education",
          "type": "BEHAVIORAL"
        },
        {
          "name": "skills training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Delaware",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "4 Years to 8 Years"
      },
      "enrollment_count": 2,
      "start_date": "2016-06-01",
      "completion_date": "2019-02-28",
      "has_results": false,
      "last_update_posted_date": "2019-03-26",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "Newark, Delaware",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03271801"
    },
    {
      "nct_id": "NCT00936507",
      "title": "Does Portion Size Influence Intake of Low-Energy-Dense Foods in Preschool-aged Children?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Caloric Intake"
      ],
      "interventions": [
        {
          "name": "Energy Density/Portion Size",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2008-09",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00936507"
    },
    {
      "nct_id": "NCT00436878",
      "title": "Intake Promoting Effects of Large Portions in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Eating"
      ],
      "interventions": [
        {
          "name": "Food portion size",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "5 Years to 6 Years"
      },
      "enrollment_count": 100,
      "start_date": "2005-10",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2018-07-12",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Houston, Texas",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00436878"
    },
    {
      "nct_id": "NCT01304615",
      "title": "Foundations for Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight",
        "Obese"
      ],
      "interventions": [
        {
          "name": "Decrease Energy Density of the Diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Increase Steps per Day",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Consumption of Self-made Meals",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 10,
      "start_date": "2011-02",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01304615"
    },
    {
      "nct_id": "NCT01065974",
      "title": "A Test of Nutritional Interventions to Enhance Weight Loss Maintenance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight",
        "Obesity",
        "Weight Loss Maintenance"
      ],
      "interventions": [
        {
          "name": "Behavior Therapy",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Meal Replacements",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nutritrol",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Drexel University",
      "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": 262,
      "start_date": "2009-10",
      "completion_date": "2016-04-30",
      "has_results": false,
      "last_update_posted_date": "2017-10-09",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01065974"
    },
    {
      "nct_id": "NCT02755558",
      "title": "Effects of Energy Density and Portion Size of Milk in Preschool Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behaviors"
      ],
      "interventions": [
        {
          "name": "Low energy density",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High energy density",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Small portion",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Large portion",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "3 Years to 6 Years"
      },
      "enrollment_count": 143,
      "start_date": "2014-09",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2017-03-21",
      "last_synced_at": "2026-09-07T22:50:08.205Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02755558"
    }
  ]
}