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NCT03326934
Impact of Dark Chocolate on Visual Performance
NA trial testing Dark chocolate in Dietary Supplementation in 57 participants. Completed in 30 August 2018.
30 August 2018
Quick facts
| Lead sponsor | University of the Incarnate Word |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | crossover |
| Masking | single |
| Primary purpose | basic science |
| Enrollment | 57 |
| Start date | 25 June 2017 |
| Primary completion | 30 August 2018 |
| Estimated completion | 30 August 2018 |
| Sites | 1 location across United States |
Drugs / interventions tested
- Dark chocolate — full drug profile →
- Milk Chocolate
Conditions studied
- Dietary Supplementation — all drugs for Dietary Supplementation →
Sponsor
University of the Incarnate Word
Who can join
Adults 18 to 65, any sex, with Dietary Supplementation. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
The purpose is to conduct a randomized, single-masked crossover study to determine if acute consumption of a commercially available, highly palatable dark chocolate bar can improve visual performance. Vision testing will include multiple measures of contrast and color perception, reaction time, effects of distraction on visual performance during simulated hands-free phone calls, simulated marksmanship, as well as multiple, objective electro-diagnostic tests including standard and color visual-evoked potentials and various types of electro-retinograms to assess visual pathway function.
Publications & conference data
3 peer-reviewed publications reference this trial (live from Europe PMC):
-
Effects of Milk vs Dark Chocolate Consumption on Visual Acuity and Contrast Sensitivity Within 2 Hours: A Randomized Clinical Trial.
Rabin JC, Karunathilake N, Patrizi K. · · 2018 · cited 15× · PMID 29710322 · DOI 10.1001/jamaophthalmol.2018.0978 -
Pertinence of nutriments for a stalwart body.
Kaur R, Sood A, Kanotra M, Arora S, et al · · 2021 · cited 4× · PMID 34435290 · DOI 10.1007/s11356-021-16060-1 -
Effect of dark vs. white chocolate on the multifocal electroretinogram.
Rabin J, Renteria L, Nguyen M, Cha C, et al · · 2020 · PMID 31900435 · DOI 10.1038/s41433-019-0757-8
Verify or expand the search:
- PubMed search for NCT03326934
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
Related trials
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Trials testing the same drug.
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- NCT04847999 — Dark Chocolate and Glucose Levels in Diabetes · NA · completed
- NCT03945916 — Dark Chocolate and Exercise Performance in Hypoxia · NA · completed
Other recruiting trials for Dietary Supplementation
Currently open trials in the same condition.
- NCT07383974 — The Impact of 12 Week Retention of Nutrients on Skin and the Perception of Physical Health Status · NA · recruiting
Other University of the Incarnate Word trials
Trials by the same sponsor.
- NCT05713981 — The Impact of Dry Eye Syndrome on Metrics of Low Contrast Vision Before and After Meibomian Gland Expression · NA · completed
- NCT05482997 — Athlete Whey Protein Sensitivity: Prevalence and Performance · NA · completed
- NCT05990036 — The Outcome of Sports Vision Training on Collegiate Softball Players · NA · completed
- NCT05463016 — Impact of Color Correcting Lenses on Color Vision Deficiency · NA · completed
- NCT04808869 — Effectiveness of Blood Flow Restriction During Aerobic Cycling · NA · completed
Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT03326934 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by University of the Incarnate Word
- Last refreshed: 18 April 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03326934.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing