Overview
Polyphenol-caffeine extract used for appetite and energy.
Forms & variants of Yerba Mate
Different chemical forms of Yerba Mate behave differently. Browse each form's mechanism, bioavailability, and best-use context.
Mechanism of action
Caffeine + chlorogenic acids enhance fat oxidation and reduce appetite via GLP-1.
Effects on the body
Organ system effects
Evidence-based benefits
Reduces body fat over 12 weeks
Moderate evidencePotential side effects
- · Jitter
- · Insomnia
- · Possible esophageal cancer risk with hot drinking long-term
Drug interactions
No notable interactions reported.
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Pregnant or breastfeeding (insufficient safety data)
- ·Children under 18 (unless directed by a clinician)
Supplement interactions
None listed.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
Affiliate-style search links to reputable retailers. We don't endorse specific brands — verify third-party testing (USP, NSF, Informed Sport) before purchase.
Scientific evidence (8)
Yerba mate for weight loss
Kim SY, et al.
12-week DB-RCT in 30 obese adults.
Reduced body fat % and waist-to-hip ratio vs placebo.
PubMed: Yerba Mate (Weight) — Reduces body fat over 12 weeks
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PubMed: Yerba Mate (Weight) — randomized controlled trial
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PubMed: Yerba Mate (Weight) — meta-analysis
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PubMed: Yerba Mate (Weight) — pharmacokinetics
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PubMed: Yerba Mate (Weight) — safety adverse events
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PubMed: Yerba Mate (Weight) — dose response
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Google Scholar: Yerba Mate (Weight) — clinical evidence
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Cross-database citation index for Yerba Mate (Weight) as it relates to "clinical evidence".
Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.