CNS stimulant, Appetite suppressant, Fatigue reducer
Alkaloids (caffeine, theobromine, theophylline), Polyphenolics (catechin)
This Site is for Educational Use Only: The information on this page is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. I am not a licensed medical professional. Always consult a qualified healthcare provider before using any medicinal plants, especially if you are pregnant, nursing, taking medications, or have a medical condition.
Guarana contains up to 67% caffeine. Sixty. Seven. Percent. Wowza! For context, coffee beans contain around 1-2% caffeine. So if you've ever had a guarana energy drink and felt like you made a questionable decision, now you know why.
It's a popular Brazilian drink traditionally used to boost alertness and energy, and it absolutely delivers on that front. It's an antioxidant, astringent, and stimulant, and helps with low vitality and stamina. The roasted seed is the preparation to reach for, which is how it's traditionally used.
The caffeine content is genuinely significant enough that all the usual caffeine considerations apply here but amplified. If you're sensitive to caffeine, approach this one with real respect for how potent it is.
Safety note: Avoid excessive doses, and avoid during pregnancy and breastfeeding. The caffeine concentration alone makes this one worth treating carefully. It can cause heart palpitations, anxiety, insomnia, and headaches at high doses, same as caffeine but faster and harder. If you're on any stimulant medications or have any cardiovascular concerns, check with your provider before adding guarana in.
Effects of the consumption of guarana on human health: A narrative review https://pubmed.ncbi.nlm.nih.gov/34755935/
Guarana (Paullinia cupana) for Fatigue https://www.ons.org/clinical-tools/pep/fatigue/guarana-paullinia-cupana
Guarana https://www.ncbi.nlm.nih.gov/books/NBK589113/
Herbal Remedies by Andrew Chevallier
Disclaimer: The content on this website is provided for informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. No provider-patient relationship is created by use of this site. The author makes no representations regarding the accuracy or completeness of the information and assumes no liability for any adverse effects resulting from the use of plants or remedies described herein.
Who wrote it? What are their credentials? Who published it and why? A wellness blog and a peer-reviewed journal are not the same thing, even when they say the same words. Always click through to the original source.
Science updates over time. A 2003 study on a supplement may have been contradicted twelve times since. Always look for the publication date and whether newer research exists. "Studies show" means nothing without a timestamp.
Who funded the study? A supplement company funding research on their own supplement is a conflict of interest. It's not automaticly a disqualification, but worth noting. Look for the "funding" or "disclosures" section of any study you read.
Not all research is equal. A randomized controlled trial carries more weight than a case study or an animal study. "A study found..." could mean ten people in a lab or a decade-long population study. The difference matters enormously.
If only one source is saying something, be skeptical. If ten independent sources across different institutions, different countries, different decades are saying the same thing, you're getting warmer. Consensus is earned, not declared. Studies should be peer reviewed.
The National Institutes of Health database (PubMed) is free and searchable. Examine.com aggregates supplement research without selling anything. Both are significantly more reliable than any wellness influencer, including me.
