Subjective measures
VAS for subjective measures of energy, focus, concentration, alertness, and mood were collected five times throughout each visit: 1) Upon arrival, prior to lying down for the first 30-minute time interval (Pre1); 2) Immediately post-baseline REE assessment (Pre2); 3) Immediately post supplement-ingestion (Post1); 4) Immediately following the second REE assessment at~50-minutes post-ingestion (Post2); and 5) Upon completion of the final REE assessment at ~100 minutes post-ingestion (Post3). Similar VAS-derived subjective outcomes were recorded in a recent investigation evaluating the effects of a thermogenic supplement (OxyShred Thermogenic Fat Burner, EHP Labs, Salt Lake City, Utah, USA) on REE, hemodynamic variables, and subjective mood states [