Guarana and Caffeine: How Much It Contains vs Coffee

Guarana seeds can hold more caffeine than coffee beans. See how much they contain, how to read a 30% extract and how EFSA caffeine reference levels apply.

NameGuarana

Scientific NamePaullinia cupana

Country of OriginBrazil (Amazon region)

First Known UseTraditionally consumed by Indigenous communities of the Amazon region.

In this blog

Guarana: a caffeine-rich seed from the Amazon
How much caffeine is in guarana seeds, powder and extract
Guarana caffeine vs coffee: same molecule, different package
Reading a guarana label: extract is not caffeine
EFSA caffeine reference levels and guarana
Conclusion

If you have ever read the label of an energy drink or a plant-based capsule, chances are you have seen guarana on the ingredient list. The first thing most people want to know is simple: how much caffeine does guarana actually contain, and is guarana caffeine any different from the caffeine in your morning coffee?

Guarana is a highly caffeinated plant, and the caffeine it contains is exactly the same molecule you get from a coffee bean. What changes from one product to the next is the amount, and that depends on whether you are looking at whole seeds, seed powder or a standardised extract.

This guide walks you through the numbers, shows you how to read a “30% caffeine” extract on a label, and explains how European caffeine reference levels apply to guarana as much as to coffee.

Guarana: a caffeine-rich seed from the Amazon

Guarana (Paullinia cupana) is a typically Brazilian plant that has traditionally been consumed by Indigenous communities of the Amazon region. Today it is grown mainly in the Brazilian states of Amazonas and Bahia.

The part that matters for caffeine is the seed. According to a review of guarana’s chemistry and uses published in the Journal of Ethnopharmacology, around 70% of guarana production goes into soft drinks and energy drinks. The rest becomes guarana powder for capsules and drinks, or raw material for the pharmaceutical and cosmetics industries.

Why guarana seeds contain caffeine

Like coffee, tea and cacao, guarana produces methylxanthines, a family of natural plant compounds. Caffeine is the main reason guarana is valued as a stimulant, and laboratory analyses of guarana products also measure the related methylxanthines theobromine and theophylline.

The seeds also contain polyphenols such as catechin and epicatechin, which analysts use as markers of authentic guarana. Guarana is not the only caffeinated plant from the region either: guayusa, an Amazonian leaf, is another.

How much caffeine is in guarana seeds, powder and extract

Guarana seeds can contain up to about 6% caffeine by weight, and the exact level varies between samples. Green coffee beans contain less: published analyses put arabica at roughly 0.9–1.3% and robusta at roughly 1.5–3.3% on a dry-weight basis.

That is why you will see guarana described as having “two”, “three” or even “five times” the caffeine of coffee. Each figure compares a different guarana sample with a different coffee. The fair summary: by weight, guarana seeds can hold noticeably more caffeine than coffee beans, but there is no single fixed multiplier.

What you are looking at	Caffeine (approx.)	Good to know
Guarana seed	Up to ~6% of seed weight	Varies between samples
Guarana seed powder	Illustrative estimate: ~40–60 mg per gram	Only if the powder is 4–6% caffeine; real powders vary
Guarana extract, standardised to 10%	100 mg per gram of extract	The percentage is set by the producer
Guarana extract, standardised to 30%	300 mg per gram of extract	The grade listed in several Happy Caps blends
Green coffee beans	Arabica ~0.9–1.3%, robusta ~1.5–3.3%	Dry weight; varies by species and origin
Espresso (60 ml)	About 80 mg	EFSA estimate
Filter coffee (200 ml)	About 90 mg	EFSA estimate

All figures are approximate. The seed powder row is an illustrative calculation, not the composition of any particular powder. Extract values follow directly from the declared standardisation. Coffee servings as estimated by EFSA.

How to read a standardised guarana extract

A standardised extract is concentrated and adjusted so that a fixed share of its weight is caffeine. “Guarana extract (30% caffeine)” means that 30% of the extract’s weight is caffeine. The maths is simple:

milligrams of extract × standardisation = milligrams of caffeine from guarana

200 mg of extract at 30% → 200 × 0.30 = 60 mg of caffeine
200 mg of extract at 10% → 200 × 0.10 = 20 mg of caffeine
500 mg of seed powder, if it were 4% caffeine → 500 × 0.04 = 20 mg of caffeine

These are illustrative examples, not the content of any specific product. The key point is that the milligrams of guarana extract on a label are not the milligrams of caffeine. You need the extract amount and its standardisation, plus any caffeine the product adds separately.

Guarana caffeine vs coffee: same molecule, different package

Caffeine from guarana is chemically identical to caffeine from coffee, tea or any other source. Your body cannot tell where a caffeine molecule came from. What differs is everything around it: guarana brings polyphenols such as catechins and other methylxanthines, while coffee brings its own mix of compounds.

You will often read that guarana releases its caffeine more slowly because its tannins bind to it, giving a longer, smoother lift with no crash. The idea sounds plausible, but it has not been clearly established in human studies that guarana caffeine behaves differently from the same amount of caffeine from coffee, so read “slow-release” and “no crash” claims with caution.

Researchers have also tested standardised guarana extracts in small trials, partly to see whether compounds other than caffeine play a role. That question is still open.

Why the numbers online don’t agree

Some comparisons use guarana seeds against green coffee, others against roasted coffee.
Some put a gram of guarana powder next to a cup of coffee, which mixes weight with volume.
Coffee species, origin, roast and brewing method all change how much caffeine ends up in a cup.
Guarana seeds themselves vary from sample to sample.

If a comparison matters to you, compare caffeine in milligrams per serving, not “times stronger”. And if you are weighing up formats rather than ingredients, our guide to energy capsules vs coffee and energy drinks covers that side.

Used in these products

Discover which Happy Caps products contain the Guarana ingredient.

Reading a guarana label: extract is not caffeine

When guarana appears on a food supplement label, three details tell you most of what you need: the amount of guarana extract per serving, its standardisation, and whether the product also contains caffeine added separately. Total caffeine is the sum of all of these.

In the EU, foods other than drinks that have caffeine added for a physiological purpose must carry the statement “Contains caffeine. Not recommended for children or pregnant women”. For food supplements, the caffeine content has to be given per recommended daily portion (Regulation (EU) No 1169/2011, Annex III). That per-portion figure is the one to add to the rest of your day’s caffeine.

Botanical ingredients also vary naturally between batches. Happy Caps notes this in the CE compliance statements it publishes for its products. You can find the Energy-E compliance statement and lab report on its documents page.

Where guarana appears in the Happy Caps range

Happy Caps Energy-E lists guarana extract standardised to 30% caffeine among its ingredients, together with Rhodiola rosea and beta-alanine.

Guarana extract (30% caffeine) also appears in Dance-E, Euphory-E and Trip-E. Brain-E lists caffeine but no guarana, while Energy-K lists neither.

This guide does not give a caffeine amount per capsule. For that, check the packaging of your batch and the product page, and follow the instructions on the label.

EFSA caffeine reference levels and guarana

The European Food Safety Authority (EFSA) assessed the safety of caffeine in 2015 and set out reference levels for different groups. These levels count caffeine from all sources, so coffee, tea, cola, energy drinks and guarana all add up to the same total:

Healthy adults: single doses of up to 200 mg, and habitual intakes of up to 400 mg per day, do not raise safety concerns.
Pregnancy: caffeine intakes from all sources of up to 200 mg per day do not raise safety concerns for the unborn child.
Breastfeeding: intakes of up to 200 mg per day do not raise safety concerns for the breastfed infant.

These are reference levels for groups of people, not personal recommendations, and they are not a target to aim for. In practice, guarana caffeine sits on top of everything else you drink. A product with guarana on a day with two coffees and an energy drink is a very different day from the same product on its own.

Product guidance follows the same logic. The Energy-E product page, for example, states that it is intended for adults aged 18 and over, and not recommended during pregnancy or breastfeeding or for people with heart conditions. If you take medication or have health questions, check with your doctor first.

Conclusion

What matters when comparing guarana products

Strip away the hype and guarana is a straightforward ingredient: a highly caffeinated seed whose caffeine is the same molecule as coffee’s, delivered in a different botanical package. When you compare products, look at three things: how much guarana extract a serving contains, what it is standardised to, and whether caffeine is added separately. Those details tell you far more than any “times stronger than coffee” headline.

If you are choosing a blend for an active day or a long night, start with Energy-E and see how it compares with Energy-K, which lists no guarana or caffeine, in our Energy-K vs Energy-E guide. You can also explore the full capsules range.

Guarana and caffeine: frequently asked questions

Does guarana contain caffeine?

Yes. Caffeine is the main stimulant in guarana seeds, which can contain up to about 6% caffeine by weight. It is the same caffeine found in coffee and tea.

How much caffeine is in guarana?

It depends on the form. Whole seeds vary between samples, and a 30% standardised extract contains 300 mg of caffeine per gram of extract. As an illustrative estimate only, a seed powder with 4–6% caffeine would contain roughly 40–60 mg per gram, but real powders vary. For a specific product, check the caffeine declared per serving on the label.

Is guarana caffeine different from coffee caffeine?

The molecule is identical. Guarana comes with other plant compounds such as catechins, and some sources claim these slow absorption, but that has not been clearly shown in human studies.

What does “guarana extract 30% caffeine” mean?

It means 30% of the extract’s weight is caffeine. Multiply the milligrams of extract by 0.30 to get the caffeine it provides. For example, 200 mg of extract gives 60 mg of caffeine.

Does caffeine from guarana count towards my daily intake?

Yes. EFSA’s caffeine reference levels cover caffeine from all sources, including guarana. For healthy adults, single doses of up to 200 mg and up to 400 mg per day do not raise safety concerns; during pregnancy and breastfeeding, the reference level is up to 200 mg per day.

Sources

EFSA Panel on Dietetic Products, Nutrition and Allergies (2015). Scientific Opinion on the safety of caffeine. EFSA Journal 13(5):4102. doi:10.2903/j.efsa.2015.4102
European Food Safety Authority. Caffeine (topic page). efsa.europa.eu
German Federal Institute for Risk Assessment (BfR). Questions and answers on caffeine and caffeinated foods, including energy drinks (updated 5 January 2026).
Schimpl FC, da Silva JF, Gonçalves JF, Mazzafera P (2013). Guarana: revisiting a highly caffeinated plant from the Amazon. Journal of Ethnopharmacology 150(1):14–31. doi:10.1016/j.jep.2013.08.023
Carlson M, Thompson RD (1998). Liquid chromatographic determination of methylxanthines and catechins in herbal preparations containing guaraná. Journal of AOAC International 81(4):691–701.
Caporaso N, Whitworth MB, Grebby S, Fisk ID (2018). Non-destructive analysis of sucrose, caffeine and trigonelline on single green coffee beans by hyperspectral imaging. Food Research International 106:193–203. doi:10.1016/j.foodres.2017.12.031
Haskell CF, Kennedy DO, Wesnes KA, Milne AL, Scholey AB (2007). A double-blind, placebo-controlled, multi-dose evaluation of the acute behavioural effects of guaraná in humans. Journal of Psychopharmacology 21(1):65–70. doi:10.1177/0269881106063815
Regulation (EU) No 1169/2011 on the provision of food information to consumers, Annex III, point 4.2.