Is it safe to take guarana seeds?
People take guarana by mouth for obesity, athletic performance, mental performance, to increase energy, and for many other reasons, but there is no good scientific evidence to support these uses. Guarana can also be unsafe when taken long-term in large amounts. It can temporarily reduce hunger and increase metabolism, promoting fat burning. However, to support weight loss, guarana powder should be consumed in moderation and combined with a well-balanced diet and regular physical activity.Guarana (Paullinia cupana) is a plant native to the central Amazon and has been used medicinally for centuries. It has a popular reputation of being a stimulant and an aphrodisiac, as well as exhibiting gastric-protective effects.Blood thinning effect Because guarana contains catechins and caffeine, it can be used as an antiplatelet agent. These ingredients help reduce the risk of various cardiovascular diseases, such as thrombosis or blood clots, because they have a blood-thinning effect.Guarana (Paullinia cupana Kunth) has been associated with weight loss, showing several protective actions against hypertension, obesity, and metabolic syndrome [13], the capacity to reduce food intake [14], and to modulate genes related to adipogenesis [15].
What are the positive effects of guarana?
Takeaway. Guarana is a popular ingredient in many energy and soft drinks. Amazonian tribes have used it for its therapeutic effects for centuries. Guarana is commonly touted for its ability to reduce fatigue, boost energy, and aid learning and memory. Guarana seed is a physical and mental stimulant1; 2 which also offers satiety-regulating effects3. Guarana is also traditionally used to support weight-loss diets4 (due to the fat-burning or lipolytic action of caffeine) and for its action on blood sugar levels5.Avoid late night consumption: Since guarana contains caffeine, it is recommended not to take guarana supplements late in the day to avoid disrupting your sleep.A cup of guaraná, prepared by adding 1/4–1/2 teaspoon (1–2 grams) of crushed seed or resin to 1 cup (250 ml) of water and boiling for ten minutes, can be consumed three times per day. Each cup may provide up to 50 mg of caffeine.Excessive or chronic use of guarana seed may cause insomnia, tremors, palpitations, or hypertension. As a result, individuals diagnosed with uncontrolled cardiovascular disease or anxiety, as well as pregnant or lactating women, should not consume guarana seed.
Is guarana safe for the liver?
In small studies on guarana, there were no reports liver injury or serum enzyme elevations during treatment. Despite extensive use, guarana has not been convincingly linked to cases of clinically apparent liver injury. Guarana is possibly safe when taken as medicine, short-term. When taken in high doses for a long time, guarana is possibly unsafe. Guarana contains caffeine. Doses containing more than 400 mg of caffeine daily have been linked to side effects.Guarana powder prevents paracetamol hepatotoxicity by modulating liver redox balance. Guarana powder attenuates exacerbation of liver necrosis in paracetamol-intoxicated rats. Guarana powder prevents serum ALT, AST, and ALP elevation in paracetamol-intoxicated rats.A 2023 systematic review and meta-analysis found that guarana ingestion may increase response time during cognitive tasks. The authors suggest one of the reasons might be the way caffeine blocks adenosine receptors, which are involved in sleep. This can reduce fatigue and increase: alertness.While guarana may have a mild effect on energy levels, cognition and satiety, these are generally short-lived and have minimal lasting clinical effects. In high doses, guarana can cause tremor, jitteriness, agitation, confusion, hypertension and dehydration.
What are the long term side effects of guarana?
Excessive or chronic use of guarana seed may cause insomnia, tremors, palpitations, or hypertension. As a result, individuals diagnosed with uncontrolled cardiovascular disease or anxiety, as well as pregnant or lactating women, should not consume guarana seed. The herb guaraná contains caffeine and the closely related alkaloids theobromine and theophylline; these compounds may curb appetite and increase weight loss. Caffeine’s effects are well known and include central nervous system stimulation, increased metabolic rate, and a mild diuretic effect.Guarana also contains antioxidant compounds, such as catechins, epicatechins, and procyanidins, which may support overall brain health and help counteract oxidative stress associated with mental fatigue.Guarana, often used as a supplement for its caffeine content, poses similar considerations, as its consumption may inadvertently lead to stimulant detection beyond permissible thresholds during NCAA drug tests.
Is guarana good for the brain?
Guarana also contains antioxidant compounds, such as catechins, epicatechins, and procyanidins, which may support overall brain health and help counteract oxidative stress associated with mental fatigue. In conclusion, acute guarana ingestion appears to have a small effect on response time indicating faster performance during a variety of cognitive tasks without affecting accuracy. Whether such performance changes are linked to the caffeine content or other bioavailable substances in guarana is unknown.One of guarana’s most beneficial contributions to hair health is its extremely high caffeine content—nearly two to four times that of coffee beans. This natural caffeine operates as a bio-stimulant, affecting the activity of hair follicles and scalp circulation.
Does guarana affect the kidneys?
Many energy drinks contain taurine, guarana, and synthetic vitamins that can interfere with kidney metabolism. These ingredients force the kidneys to work harder to excrete excess compounds. Combined with poor hydration and high-protein diets, they can accelerate renal stress and even lead to kidney stones. Eating a well-balanced diet of nutritious foods — low-sodium foods packed with vitamins and the right minerals — is one of the best things you can do to help stop or slow the progression of kidney disease.Drinking plenty of water and incorporating kidney-friendly beverages like lemon water, cranberry juice, and herbal teas can significantly support your health during recovery. Avoid harmful drinks like alcohol, sugary beverages, and excessive caffeine to ensure your kidneys function optimally.
Is guarana stronger than caffeine?
Guarana is a climbing plant native to the Amazon whose seeds contain approximately four times the amount of caffeine found in coffee beans. The mix of other natural chemicals contained in guarana seeds is thought to heighten the stimulant effects of guarana over caffeine alone. Guarana is the popular name of Paullinia cupana var. Mart.