Guarana, like different sources of caffeine (e.g., espresso and tea), is acknowledged to be a safe plant with a protracted historical past of use. Though issues and complaints are uncommon, unintended effects are potential in some instances.
For instance, guarana can have an effect on blood strain, so it might have a damaging impression when you’re delicate to caffeine or have blood strain considerations. Moreover, ingesting too much of the ingredient could cause jitters and contribute to caffeine crashes, whereas taking it too late in the day can mess along with your magnificence sleep.
As Naidoo notes, all of us react to caffeine otherwise, largely because of the uniqueness of our liver metabolism genetics, in addition to our individualized gut microbiomes. That mentioned, it’s vital to concentrate to the way you react to caffeine-containing substances—guarana or in any other case—and use that info to personalize the amount and timing of your consumption.
To play it secure, keep away from excessive doses of guarana, as you don’t want a lot to reap the advantages. “Usually, a dose of lower than 100 milligrams is sufficient to present advantages,” notes Pasquariello. It’s additionally a good suggestion to seek the advice of your well being care supplier earlier than including guarana to your routine, simply as you’d with any complement, she provides.
