# Pre-workout Supplement Versus Caffeine on Energy Expenditure.

> **NCT04539054** · NA · COMPLETED · sponsor: **Northern Illinois University** · enrollment: 12 (actual)

## Conditions studied

- Healthy

## Interventions

- **DIETARY_SUPPLEMENT:** ENGN Shred
- **DIETARY_SUPPLEMENT:** Nutricost caffeine powder
- **DIETARY_SUPPLEMENT:** Crystal Light

## Key facts

- **NCT ID:** NCT04539054
- **Lead sponsor:** Northern Illinois University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-09-01
- **Primary completion:** 2019-12-31
- **Final completion:** 2019-12-31
- **Target enrollment:** 12 (ACTUAL)
- **Last updated:** 2020-09-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04539054

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04539054, "Pre-workout Supplement Versus Caffeine on Energy Expenditure.". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04539054. Licensed CC0.

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