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The effect of green tea extracts containing catechins and caffeine on energy expenditure and fat oxidation in humans.
Randomized human trials testing green tea catechins (GTCs) or isolated EGCG for metabolism and weight have produced modest, inconsistent effects: some controlled trials report small reductions in body...
Independent human studies of green coffee extract (GCE) and its main active, chlorogenic acid (CGA), produce mixed signals: several randomized controlled trials and multiple meta-analyses report small...
Controlled respiratory‑chamber trials and meta‑analyses show that green tea extracts containing both catechins (especially EGCG) and caffeine produce small but measurable increases in 24‑hour energy e...
A cluster of randomized human trials supports the idea that green tea extracts containing both catechins (notably EGCG) and caffeine can increase energy expenditure and shift substrate use toward grea...