When to take it
In the morning or before training; not later than 6–8 hours before bed.
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PerformanceModerate evidence
Guarana
Also known as: Paullinia cupana, guarana powder
Guarana is a South American vine whose seeds contain more caffeine than coffee beans, along with theobromine and tannins. Its effect on alertness and performance mainly reflects its caffeine content.
What it is used for
- alertness and focus – moderate evidence, effect attributed to caffeine
- endurance performance – moderate evidence for caffeine
- weight loss support – weak evidence
Forms and how they differ
seed powder
caffeine content varies and is often not stated
extract standardised to caffeine
more precise dosing
tincture
contains alcohol, caffeine content is harder to estimate
Pairs well with
L-theanine for a 'smoother' energy, plenty of water.
Do not combine / separate
Do not combine with coffee, energy drinks or other caffeine sources without adding up the total dose; keep a gap from iron and thyroid medicines.
Watch out for
During pregnancy and breastfeeding, limit total caffeine. With high blood pressure, heart rhythm disorders, anxiety, insomnia, kidney or liver disease, or if you take medicines (especially stimulants, some antidepressants, asthma medicines), consult your doctor.
Safety
EFSA considers up to 400 mg caffeine per day and up to 200 mg at once safe for healthy adults; up to 200 mg per day during pregnancy. Add up all caffeine sources and do not exceed the label dose.
Practical tip
Look for products that state caffeine in mg per dose – otherwise you cannot tell how much you are really taking.
Products containing Guarana 3
Guarana 500 mgseed powder · 500 mg / capsule
Guaranaseed powder
Guaranatincture
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence
Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.
Combination check
Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.
Check Guarana with othersWhich supplements do you actually need?
Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.
From the same group
AmylopectinModerate evidenceBeta-alanineStrong evidenceBHB ketonesWeak evidenceCaffeineStrong evidenceCreatineStrong evidenceD-aspartic acidWeak evidence
Important notice
This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.