Effects of Daily Supplementation of 5-HTP on Body Composition
1 other identifier
interventional
65
1 country
1
Brief Summary
The purpose of this investigation was to compare supplementation with 5-HTP to placebo on indices of body composition. A randomized trial compared a sample of 48 resistance-trained individuals taking either 100 mg of 5-hydroxytryptophan supplementation or a placebo. The investigators tested anthropometric measurements using a multi-frequency bioelectrical impedance device (InBody® 270). The primary outcome (i.e., changes in anthropometric measurements) was assessed at the first visit (pre-test-) and post-test (8 weeks). Secondary outcomes include resting heart rate, blood pressure, and dietary intake.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jan 2021
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
May 15, 2021
CompletedFirst Submitted
Initial submission to the registry
December 7, 2021
CompletedFirst Posted
Study publicly available on registry
January 31, 2022
CompletedResults Posted
Study results publicly available
February 20, 2024
CompletedFebruary 12, 2025
February 1, 2025
4 months
December 7, 2021
July 11, 2022
February 10, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Body Composition
The percentage of fat, bone, and muscle was assessed pre and post visit using multi-frequency bioelectrical impedance device (InBody® 270).
8 weeks
Secondary Outcomes (3)
Dietary Habits
8 weeks
Blood Pressure
8 weeks
Resting Heart Rate
8 weeks
Study Arms (2)
5-HTP
EXPERIMENTALThe dietary supplement (100 mg of 5-hydroxytryptophan; CLEANMOOD™) was provided by NURA™ (Irvine, California USA). Subjects were instructed to consume one capsule daily at their convenience for 8 weeks.
Control
PLACEBO COMPARATORThe placebo consisted of maltodextrin. Subjects were instructed to consume one capsule daily at their convenience for 8 weeks.
Interventions
Eligibility Criteria
You may qualify if:
- Healthy or free of disease
- Minimum of 1 year of regular physical activity. Regular physical activity is defined by a minimum of 150 minutes of aerobic activity or performing muscle-strengthening exercises at least 2 days a week.
You may not qualify if:
- Physically inactive
- Regularly used sleep aids of any kind
- Currently taking selective serotonin reuptake inhibitors (SSRIs) and/or 5-HTP containing supplements.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
IHP
Boca Raton, Florida, 33432, United States
Related Publications (3)
Maffei ME. 5-Hydroxytryptophan (5-HTP): Natural Occurrence, Analysis, Biosynthesis, Biotechnology, Physiology and Toxicology. Int J Mol Sci. 2020 Dec 26;22(1):181. doi: 10.3390/ijms22010181.
PMID: 33375373BACKGROUNDStamatakis E, Straker L, Hamer M, Gebel K. The 2018 Physical Activity Guidelines for Americans: What's New? Implications for Clinicians and the Public. J Orthop Sports Phys Ther. 2019 Jul;49(7):487-490. doi: 10.2519/jospt.2019.0609.
PMID: 31258047BACKGROUNDCangiano C, Ceci F, Cairella M, Cascino A, Del Ben M, Laviano A, Muscaritoli M, Rossi-Fanelli F. Effects of 5-hydroxytryptophan on eating behavior and adherence to dietary prescriptions in obese adult subjects. Adv Exp Med Biol. 1991;294:591-3. doi: 10.1007/978-1-4684-5952-4_73. No abstract available.
PMID: 1722953BACKGROUND
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Limitations and Caveats
The primary limitation of this study was the lack of control for exercise. Although subjects were instructed to maintain the same training habits, it is certainly possible that training changed.
Results Point of Contact
- Title
- Dr. Jose Antonio
- Organization
- Nova Southeastern University
Study Officials
- PRINCIPAL INVESTIGATOR
Jose Antonio, PhD
Nova Southeastern University
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Masking Details
- All subjects and investigators were blinded.
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Co-principal Investigator
Study Record Dates
First Submitted
December 7, 2021
First Posted
January 31, 2022
Study Start
January 1, 2021
Primary Completion
April 30, 2021
Study Completion
May 15, 2021
Last Updated
February 12, 2025
Results First Posted
February 20, 2024
Record last verified: 2025-02
Data Sharing
- IPD Sharing
- Will not share