Gokarna (Butterfly Pea): Benefits, Evidence & Safety

TL;DR

Gokarna is Clitoria ternatea (butterfly pea), an Ayurvedic medhya herb traditionally used to support memory and calm the mind. Human evidence is thin: one small non-randomized study of the powder reported better working memory in children, and a 2026 tea trial eased diabetes-related distress. Animal studies show nootropic and anxiolytic effects.

(51 words. Sources: IJAPR clinical study; Avicenna J. Phytomedicine 2026 tea trial; Pharmacol. Biochem. Behav. 2003, animal study.)

What it is

Gokarna is Clitoria ternatea L., a perennial climbing herb of the legume family (Fabaceae) with showy blue (sometimes white) flowers: the plant sold worldwide as butterfly pea or blue pea. "Gokarna" (Marathi; "cow's ear," for the flower's shape) is listed among the traditional synonyms of Aparajita, alongside Gokarni, Girikarnika, and Shankhapushpi (J-AIM integrative review; pharmacognosy review, Pharmacologyonline 2011).

A naming caution: Clitoria ternatea is one of several different plants traded under the name Shankhpushpi (others include Convolvulus pluricaulis and Evolvulus alsinoides), so products labeled "Shankhpushpi" may not contain this species (pharmacognostic standardization review). The flowers' vivid blue color comes from ternatins, a group of delphinidin-based anthocyanins; the plant also contains flavonols including quercetin and myricetin (same review).

Traditional use

In Ayurveda, Clitoria ternatea is a medhya drug: a category of herbs traditionally used to support intellect and memory. The J-AIM review attributes Medhya, Vishaghna, and Shothahara actions to it, with Tikta–Kashaya rasa, Laghu–Ruksha guna, and Sheeta virya, and records traditional use in skin disorders, urinary tract disorders, and balancing all three doshas (J-AIM integrative review). A 2026 clinical paper summarizes its folk reputation as a "tonic of the nerves," memory enhancer, nootropic, antistress, anxiolytic, and antidepressant agent (Avicenna Journal of Phytomedicine). These are traditional uses, not clinical proof: the human evidence is assessed below.

What modern research says

Working memory in children (small, uncontrolled)

In a clinical study at Government Ayurveda College, Thiruvananthapuram, children aged 7–11 with working-memory deficits received Sankhapushpi (Clitoria ternatea) choorna, 1–2 g twice daily with ghee and honey for 2 months. Working-memory test scores improved significantly (p<0.001), with the effect sustained at 1-month follow-up (IJAPR clinical study). Important caveats: the study was non-randomized, had a single group with no control arm, and used pre/post testing: so placebo and practice effects cannot be ruled out.

A 2026 clinical study tested Clitoria ternatea flower tea in people with type 2 diabetes: participants drinking a beverage made with 10 g of flower extract showed significantly greater improvement in diabetes distress and quality-of-life scores than comparison groups (Avicenna Journal of Phytomedicine). The authors attribute part of the effect to delphinidin anthocyanins with reported anxiolytic, anti-inflammatory, and antioxidant properties. This is a single trial of a tea preparation, not proof of an antidiabetic effect.

Animal studies (not human proof)

A widely cited animal study found that a methanolic extract of C. ternatea showed nootropic, anxiolytic, antidepressant, anticonvulsant, and antistress activity in rodents: improving object-recognition memory and reducing anxiety-like behavior (Pharmacol. Biochem. Behav. 2003, via PubMed). Rodent results do not establish human effects.

What the evidence does not support (yet)

There are no large randomized, placebo-controlled trials of Gokarna for memory or cognition in adults. Claims that butterfly pea "boosts memory" or "prevents dementia" run ahead of the data; the honest summary is a traditional cognitive-use history plus preliminary, mostly preclinical, investigation.

Dosage

There are no established dosing guidelines: the figures below are regimens from the cited studies, not recommendations. The children's working-memory study used 1–2 g of choorna twice daily with ghee and honey for 2 months (IJAPR); the diabetes-distress tea trial used a beverage prepared from 10 g of flower extract (Avicenna J. Phytomedicine). Butterfly pea is also consumed as a food-grade tea; none of these figures constitutes a personal dose recommendation.

Safety & contraindications

Human safety data are limited to short, small studies; no serious adverse events were reported in the cited trials, and the flower is widely consumed as a beverage tea. That said, systematic safety data, including in pregnancy and breastfeeding, are lacking, so avoid use in pregnancy and consult a clinician if breastfeeding, managing a medical condition, or taking prescription medicines (particularly for blood sugar or mood, given the traditional neuroactive reputation). As with any product sold under the ambiguous name "Shankhpushpi," verify that the product actually contains Clitoria ternatea.

FAQs

What is Gokarna?

Gokarna is the traditional (Marathi) name for Clitoria ternatea, or butterfly pea: a blue-flowered leguminous climber used in Ayurveda as a medhya (cognition-supporting) herb (J-AIM review).

Does Gokarna improve memory?

Possibly, but the evidence is weak. One small non-randomized study in children reported improved working-memory scores after 2 months of Clitoria ternatea powder, and animal studies show nootropic effects: but there are no large randomized trials in adults (IJAPR; PubMed 12895670).

Is butterfly pea tea the same as Gokarna?

Butterfly pea tea is made from the flowers of Clitoria ternatea: the same plant. A 2026 clinical study of the tea in type 2 diabetes reported reduced diabetes-related distress, but that is a single trial, not proof of broader health effects (Avicenna J. Phytomedicine).

Is Gokarna the same as Shankhpushpi?

Not exactly. Clitoria ternatea is one of several plants sold as "Shankhpushpi", others include Convolvulus pluricaulis and Evolvulus alsinoides, so a "Shankhpushpi" product may contain a different species (pharmacognostic review).

Is Gokarna safe?

Short-term use in small studies reported no serious adverse events, and the flower is consumed as tea. But systematic safety data are lacking, including for pregnancy and breastfeeding: avoid use in pregnancy and talk to a clinician before medicinal use.

Sources

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.