🕌Persian Medicine

Barberry (Zereshk)

fruit

Berberis, commonly known as barberry, is a large genus of deciduous and evergreen shrubs from 1–5 m tall, found throughout temperate and subtropical regions of the world. Species diversity is greatest in South America and Asia, but native species also appear in Europe, Africa, and North America.

Conditions addressed

Liver Support Digestive Issues Blood Sugar Inflammation Immune Support

How to use

½–1 cup fresh daily, or 2–3 tbsp dried

Eat fresh, raw, or dried.
Can be blended into smoothies, juiced, or added to salads and grain bowls.

Pregnancy, Breastfeeding & Children

Pregnancy

Avoid

Barberry contains berberine, which is contraindicated in pregnancy — it can cross the placenta and has been linked to newborn jaundice (kernicterus) risk; it also has a uterine-stimulant reputation.

Breastfeeding

Avoid

Berberine content means it's generally avoided during breastfeeding due to potential infant jaundice risk.

Children

Avoid

Berberine-containing herbs are contraindicated in newborns/infants due to jaundice (kernicterus) risk; used cautiously if at all in older children.

Interactions & contraindications

Processed by the liver

Watch for: Any medication that is also processed by liver enzymes (ask your pharmacist — this includes many common prescriptions)

Can alter how quickly the body clears certain medications, raising or lowering their effective dose.

May affect blood sugar

Watch for: Insulin and oral diabetes medications (metformin, sulfonylureas)

Additive blood-sugar-lowering effects can risk hypoglycemia — monitor glucose closely.

May affect immune activity

Watch for: Immunosuppressants (for transplant or autoimmune conditions)

Immune-stimulating herbs can work against immunosuppressive therapy.