Safety · Supplement
Guarana: side effects, safety & interactions
Caffeine-driven — jitter, insomnia, cardiovascular load; easy to over-caffeinate in stacks.
- Overall grade
- Grade C
- Last revised
- 0
- graded outcomes
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Watch with Caffeine: It IS caffeine — don't double up.
The evidence in words
Safety profile
Caffeine-driven — jitter, insomnia, cardiovascular load; easy to over-caffeinate in stacks.
Interactions to respect
Caffeine — It IS caffeine — don't double up.
What Guarana is
Guarana is a seed extract very high in caffeine (plus tannins), common in energy drinks and fat-burners.
The honest bottom line
Basically caffeine with extra steps. Fine as a stimulant source; count it toward your caffeine total.
Related reading
Entries that share this one's tags or conditions.
- Caffeine: side effects, safety & interactionsSafe for most in moderation; excess causes anxiety, palpitations, and insomnia. Dependence and withdrawal (headache, fatEvidence grade A
- Theacrine (TeaCrine): side effects, safety & interactionsWell tolerated in short trials; long-term data limited. Still a stimulant — mind total stimulant load and late-day dosinEvidence grade C
- GuaranaA caffeine-rich Amazonian seed — essentially a slow-release caffeine source with the usual stimulant profile.Evidence grade C
- Guarana for Alertness / metabolic (via caffeine)Evidence grade C — Caffeine-drivenEvidence grade C
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.