A Commercially Available Thermogenic Dietary Supplement Increases Resting Metabolic Rate in Physically Active Males: A Randomized, Double-Blind, Placebo-Controlled Investigation.

What Was Tested

Researchers studied Copper (Supplement) in this randomized controlled trial publication.

The purpose of this study was to examine the effects of a commercially available dietary supplement (containing ingredients that promote thermogenesis) on resting metabolic rate (RMR) in a randomized, double-blind, placebo-controlled cross-over study.

Why It Was Studied

Ten healthy, physically active males (age: 26.5 ± 6.4 years; height: 177.6 ± 7.2 cm; body weight: 80.5 ± 10.8 kg) underwent two testing sessions separated by approximately 7 days.

Following baseline assessments of RMR, heart rate (HR), and blood pressure (BP), each participant ingested a thermogenic dietary supplement or a placebo.

Who Took Part

By PubMed's age tags, the people studied were young adults and adults, men only.

How the Study Was Run

In design terms this was a randomized, double-blind, placebo-controlled and crossover study.

Random assignment meant chance, not the researchers, decided who got Copper (Supplement) and who got the comparison, which limits bias.

Neither the participants nor the staff measuring them knew who was on Copper (Supplement), so expectations could not easily colour the readings.

A placebo (an inactive look-alike) gave the Copper (Supplement) group a baseline to be compared against.

In the crossover set-up each of the participants took both Copper (Supplement) and the comparison in turn, acting as their own control.

What Was Measured

Ten healthy, physically active males (age: 26.5 ± 6.4 years; height: 177.6 ± 7.2 cm; body weight: 80.5 ± 10.8 kg) underwent two testing sessions separated by approximately 7 days.

Following baseline assessments of RMR, heart rate (HR), and blood pressure (BP), each participant ingested a thermogenic dietary supplement or a placebo.

PubMed files the paper under topics including Basal Metabolism, Blood Pressure, Dietary Supplements, Energy Metabolism, Heart Rate and Thermogenesis.

The authors tagged it with the keywords body composition, bodybuilding, fat loss and sports nutrition.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Copper (Supplement).

The publication is from 2020 (Journal of dietary supplements), a journal based in England.

More context: the Copper (Supplement) compound page, all human trials.