Is Guarana Safe for You?
Since guarana contains caffeine, anyone that is sensitive to caffeine and xanthines should not consume products containing guarana. If you have no side effects to caffeine, guarana is considered to be a very safe and healthy ingredient for those consuming it.
People with heart conditions, diabetes, high blood pressure, epilepsy, overactive thyroid, anxiety, insomnia, and kidney disease should only use guarana under the supervision of their doctor. If you are pregnant or nursing, it is recommended that you downsize your consumption of caffeine, so guarana intake should also be decreased.
A Journal of Psychopharmacology study found that guarana improved memory, mood, and alertness at low (37.5 mg, 75 mg) vs. higher (150 mg, 300 mg) doses. However, another study examined the long-term use of guarana, caffeine, or placebo on the cognition of 45 older individuals, and there were no significant effects of guarana on cognition.
All in all, guarana is a very safe ingredient, but should not be over-consumed. The new weight loss supplement Guarana Blast contains a safe amount of guarana to help burn fat, increase energy and detoxify your body.