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Botanical & herbal supplements

Yerba Mate

Ilex paraguariensis leaf infusion/extract

Yerba mate is an Ilex paraguariensis leaf beverage or extract that naturally contains caffeine. Its practical stimulant effect depends on the product's caffeine disclosure, preparation, serving size, and total caffeine from every source. The broader human literature uses varied mate products and is not a basis for a universal extract dose or nootropic promise.

Mental EnergyWakefulnessAdenosine RelatedWhole HerbFood DerivedModerate Human EvidenceInsomnia Risk
Updated August 2026/4 min read/4 citations
Reviewed by the NootropicsIndex editorial team.Method: prioritize cited human research and official safety or regulatory sources; compare retailer-listed prices without endorsing products.Affiliate disclosure
01

What is it?

What this Yerba Mate page covers

1

Yerba mate is an Ilex paraguariensis leaf product sold as a brewed beverage, powder, or extract. For a buyer, the useful comparison is caffeine disclosure and product form, not a generic extract-milligram number.

02

Names, aliases and forms

Common NameYerba mate
Scientific NameIlex paraguariensis
Spelling VariantYerba maté
03

Mechanisms of action

Caffeine is the practical comparison point

1

Yerba mate naturally contains caffeine. Because products vary in preparation and caffeine amount, do not assume a leaf tea, powdered blend, and extract share the same stimulant exposure or cognitive effect.

04

Potential effects and evidence map

A systematic review of yerba mate studies found highly varied products, populations, and study quality. It does not establish a standard mate extract as a targeted cognitive supplement.

Effect domainMagnitudeGrade
Mental energy / wakefulness2
AcuteConfidence: Medium

Yerba mate products can add to caffeine-related wakefulness, but the effect depends on disclosed caffeine and total stimulant exposure.

Note Do not frame varied leaf and extract products as a reliably distinct cognitive stimulant.

1/5
C
05

Typical dosages and timing

COMPARISON UNIT2labeled caffeine mg

There is no universal yerba mate extract dose. Compare caffeine per serving and total daily caffeine; the all-source caffeine reference points are not a target for every user.

06

Timing & effect horizon

Effect horizonAcute
Acute
07

Safety, side effects and risk profile

Total caffeine changes the safety picture2
For most healthy adults, FDA cites 400 mg caffeine per day as an amount not generally associated with negative effects, but personal sensitivity varies. Count mate alongside all other caffeine sources.
Overstimulation / insomnia2
Confidence: High

Sleep disruption, jitters, and related stimulant effects depend on total caffeine from mate, coffee, tea, energy products, medicines, and supplements.

Note Use the label's caffeine amount and count all sources.

2/5
B
Cardiovascular caution2
Confidence: Medium

Caffeine sensitivity varies with body size, medicines, and medical conditions; people with relevant concerns should seek individual advice before adding a stimulant product.

Note Targeted caution, not a claim that ordinary mate servings harm healthy adults.

2/5
B
Pregnancy / lactation caution3
Confidence: High

For pregnancy and lactation, EFSA places all-source caffeine in a 200 mg context; include yerba mate with every other caffeine source.

Note This is a caffeine context, not a mate-product dose.

2/5
B
Evidence uncertainty1
Confidence: High

Yerba mate research spans beverages, extracts, and varied populations, so one product label does not establish the effect or safety profile of another.

Note Product form and caffeine disclosure are comparison essentials.

2/5
C
08

Interactions and cautions

STACKING2

Assess yerba mate alongside coffee, tea, energy products, pre-workouts, caffeine-containing medicines, and other supplements. Seek individual advice when a medicine or condition changes caffeine tolerance.

09

Legal and regulatory status

United States — as of 20264

As of 2026, U.S. dietary supplements are generally not approved by FDA for safety or effectiveness before marketing. This describes the U.S. framework only, not every jurisdiction or individual product.

10

Practical buying and quality notes

  • Look for caffeine per serving, serving size, leaf tea versus extract form, added stimulants, and preparation instructions. Marketing around natural energy does not substitute for a quantified caffeine label.2
11

FAQ

Is yerba mate a nootropic?

1

It is better understood as a caffeine-containing leaf product. A product may contribute to caffeine-related wakefulness, but varied studies and products do not establish a standard mate extract as a targeted nootropic.

How should I compare yerba mate products?

2

Start with caffeine per serving, then compare leaf tea versus extract form, serving size, added ingredients, preparation, and price. Add up caffeine from every source rather than comparing leaf weight alone.

12

References

  1. José MFB, Machado RP, Araujo PAB, Speretta GF. Physiological effects of yerba maté (Ilex paraguariensis): a systematic review. Nutrition Reviews. 2023;81(9):1163-1179.
  2. U.S. Food and Drug Administration. Spilling the Beans: How Much Caffeine is Too Much?
  3. EFSA Panel on Dietetic Products, Nutrition and Allergies. Scientific Opinion on the safety of caffeine. EFSA Journal. 2015;13(5):4102.
  4. U.S. Food and Drug Administration. Questions and Answers on Dietary Supplements.
Note

This page is informational and summarizes available evidence. It is not medical advice, a recommendation, or a substitute for guidance from a qualified clinician.