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CompletedNCT05939011KDHLUpdated Nov 28, 2023

Ketogenic Diet Health and Longevity

An interventional study of Well-formulated Ketogenic Diet in Ketogenic Dieting, Ketoses, Metabolic and Ketosis, sponsored by University of Kansas Medical Center. Completed at 1 site in United States. Open to participants aged 30 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-11-28.

Sponsored by University of Kansas Medical Center · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 10 months after the study started (first participant enrolled Apr 2022, registered Feb 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
30 Years to 55 Years
Sex
All
01

Study summary

The goal of this pilot intervention is to learn about how a well-formulated ketogenic diet (WFKD) impacts various health factors in generally healthy adults. The main questions it aims to answer are:

  • Establish whether an 8-week isocaloric, WFKD improves body composition and metabolic biomarkers in adults without chronic disease.
  • Examine changes in transcriptomic sequencing pathways pre- and post-WFKD intervention.
  • Explore gut microbial changes in adults without chronic disease that consume a WFKD.

Participants will follow a well-formulated ketogenic diet for 8-weeks. Study procedures include:

  • Weekly body weight tracking
  • Daily urinary ketone assessment
  • Pre/post stool samples for gut microbiota analyses
  • Pre/post DXA scans
  • Diet quality tracking through 3-day food records
02

Conditions studied

  • Ketogenic Dieting
  • Ketoses, Metabolic
  • Ketosis

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Keywords

  • ketogenic
  • well-formulated ketogenic diet
  • keto
03

In context

Ketosis

181 studies on the registry are indexed under Ketosis; 37 are open to participants now.

This study's enrollment of 20 is below the median of 25 across 144 interventional studies indexed under Ketosis.

Browse Ketosis studies →

Lead sponsor

University of Kansas Medical Center is the lead sponsor of 483 studies on the registry; 113 are open to participants now.

Of its 38 completed or terminated interventional studies of FDA-regulated products, 24 (63%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
30 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 30 to 55 years
  • Speaks English as primary language
  • BMI 20.0-34.9 kg/m\^2

Exclusion criteria

Exclusion Criteria:

  • Certain medications (statin, blood pressure, thyroid hormone replacement, etc.)
  • Prior medical diagnosis of type 1 or type 2 diabetes mellitus, cancer requiring chemotherapy or radiation therapy within 5 years, cardiac event, GI disorders, traumatic brain injury/multiple concussions, hypertension, dyslipidemia, or any diagnosis deemed ineligible by study team
  • History of renal stones
  • Currently lactating
  • Already following a ketogenic diet
  • Adherence to a specialized diet regimen that disallows compliance
  • Use of tobacco or tobacco replacement products within 1 year
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Well-formulated ketogenic diet (WFKD)

    The researchers aim to enroll 20 healthy adults recruited from Kansas City and surrounding areas for an 8-week WFKD diet intervention. Study personnel will obtain baseline (week 0), mid-point (week 4), and end-of-study (8 weeks) blood samples, anthropometrics, and dietary intake data. Fecal microbiome samples and dual energy x-ray absorptiometry (DXA) are collected at baseline and 8-weeks. Blood samples collected at baseline and 8-week visits will be measured for metabolic biomarkers, inflammatory biomarkers, and RNA. The blood sample collected at the 4-week visit will include glucose, insulin, insulin resistance, and beta-hydroxybutyrate to track diet adherence and adjust the diet as needed.

    Behavioral: Well-formulated Ketogenic Diet

Interventions

  • BehavioralWell-formulated Ketogenic Diet

    1:1 ketogenic diet that is focused on intake of high-quality fats (nuts/seeds, fatty fish, avocado) and reduction in processed food.

06

What researchers measure

Primary outcomes

  1. Changes in Body Composition-- dual x-ray absorptiometry (DXA)

    Measures of tissue distribution

    Time frame: Baseline, 8 Week

  2. Changes in Waist Circumference (WC)

    Waist circumference (cm)

    Time frame: Baseline, 4 Week, 8 Week

  3. Changes in Body Mass Index (BMI)

    Ratio of height and weight in kg/m\^2

    Time frame: Baseline, 4 Week, 8 Week

  4. Changes in Homeostatic model assessment of Insulin Resistance (HOMA-IR)

    Ratio of fasting glucose and fasting insulin with a conversion factor, unitless

    Time frame: Baseline, 4 Week, 8 Week

  5. Changes in Advanced Lipid Panel

    Time frame: Baseline, 8 Week

  6. Changes in Inflammation

    Changes in high sensitivity C-reactive protein (hs-CRP) (mg/L)

    Time frame: Baseline, 8 Week

Secondary outcomes

  1. Changes in transcriptomic sequencing pathways

    Measured via RNASequencing (RNA-Seq) technique: high-throughput (\~25,000 genes) RNAseq using SE100 Illumina (HiSeq) reads

    Time frame: Baseline, 8 weeks

  2. Gut microbial changes

    Taxonomic classification of individual operational taxonomic units (OTU) with 97% similarity and produce an OTU table of all identified taxa across all samples

    Time frame: Baseline, 8 weeks

07

Study locations

1 site
  • University of Kansas Medical Center
    Kansas City, Kansas 66208, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05939011
Lead sponsor
University of Kansas Medical Center
Collaborators
University of California, Davis
Responsible party
Debra K. Sullivan, PhD, RD (Department Chair, Dietetics and Nutrition, University of Kansas Medical Center) — Principal investigator
First posted
Jul 11, 2023
Start date
Apr 8, 2022
Primary completion
Sep 15, 2023
Completion
Sep 15, 2023
Last update
Nov 28, 2023

Study contacts

Debra K Sullivan, PhD
principal investigator · University of Kansas Medical Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.

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