Educational information, not medical advice — ask your doctor or midwife.
Insulina vegetal is a climbing vine from Latin America and the Caribbean. Its botanical name is Cissus verticillata. In English it is often called princess vine.
People brew the leaves and stems as a tea, mainly for blood sugar. The Spanish name means "plant insulin". That name reflects hope, not proof.
Human evidence is very thin. Most of what is known comes from animal and cell studies. Long folk use proves neither effect nor safety.
Nobody has shown in people how this plant affects blood sugar.
In rats and mice, leaf extracts have lowered blood sugar in several reports. Other animal studies found little or no change. The picture is mixed.
In test tubes, extracts appear to slow enzymes that break starch into sugar. In theory that would slow the rise in blood sugar after a meal. Whether it happens in a person is not known.
Cell and animal work also points to antioxidant and anti-swelling activity. These are early findings. They do not show a benefit you would feel.
Most people meet it as a leaf tea.
Common forms: - Fresh or dried leaves and stems, brewed as a hot tea - A cold water soak of the stems, which turns thick and slimy - Crushed leaves laid on the skin in some traditions - Capsules and powders sold as "vegetable insulin" - Liquid extracts and tinctures
Labels are often vague. Many products do not name the species inside.
Several unrelated plants are also sold as "insulina". If the label does not give the botanical name, you cannot tell what you have.
Insulina vegetal has a long record in Latin American and Caribbean folk medicine.
Healers in Brazil, Mexico, Cuba and Puerto Rico used the leaves and stems. The main uses were for diabetes, swelling, sores and seizures.
The "plant insulin" name spread during the twentieth century, after insulin itself became famous. The plant also had household uses. Slippery stem water served as a soap and hair rinse.
This page reports that record. It does not suggest you treat yourself with the plant.
Stop and get urgent help if you have signs of low blood sugar. These include shaking, cold sweats, a fast heartbeat (tachycardia), blurred vision or confusion. If someone faints or cannot be roused, call emergency services.
Stop and see a doctor within a day or two if you get a rash, repeated vomiting, or yellow skin or eyes.
Book a review if your home blood sugar readings change after you start it. Your medicine dose may need checking.
In the United States it is sold as a dietary supplement. It is not approved to treat or prevent any disease. In the UK and the European Union it is not licensed as a medicine. In parts of Latin America and the Caribbean it is sold openly in markets as a herbal tea.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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