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Caffeine and green tea extract

Natural ingredients with evidence-supported effects on weight loss and metabolism, including increase in resting metabolic rate

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Jan 11, 2026

What clinical evidence supports the ingredients commonly used in Laellium (berberine, green tea extract, ACV) for weight loss?

Clinical trials and multiple meta-analyses show that berberine produces modest but statistically significant reductions in body weight, BMI and waist circumference and affects metabolic markers, green...

Jan 8, 2026

Do combinations of gelatin with green tea extract or caffeine produce additive weight‑loss effects in controlled human studies?

Controlled human trials and meta‑analyses show that green tea extracts (which contain catechins, notably EGCG, plus caffeine) can produce small, sometimes statistically significant increases in energy...